Chris started his career with Australian side Perth SC before a £150,000 move to England with West Ham United. He was part of the Hammers youth team that reached the FA Youth Cup final. He was loaned to Brentford in the 1998-99 season, making his League debut in a 2-0 win over Brighton. He played in a further 8 matches for the Bees, including a 3-2 defeat to Tottenham in the League Cup before returning to Upton Park.

He made his West Ham debut at the end of the season, as the Hammers were thumped 1-5 at home to Leeds, Chris coming on as an 83rd minute substitute. In April 1999, Chris was loaned out to Southend United, but after just one substitute appearance, he returned to West Ham.

Struggling to make a breakthrough into West Ham's first-team, he joined Scottish outfit Dundee on transfer deadline day in March 2000, although he didn't make an appearance before the end of that season and indeed took a while to establish himself in the Dundee first-team squad.

Chris got his Dundee first-team chance during the Christmas period of the 2000-01 season, making his debut in a 2-1 defeat at St. Mirren. He was pretty much a regular for the rest of the season, bringing a more physical presence to the Dundee rearguard and making a total of 27 appearances in all competitions.

He appeared in 3 matches during the 2001-02 campaign for Dundee, playing in the Intertoto Cup as Dundee drew 0-0 with Sartid, but lost the return leg 5-2. His only other appearance of the season, prior to his move to the Hatters, came in a 1-0 home win over Livingston.

Signed as a domineering central defender to play alongside Russell Perrett at the heart of Luton's rearguard, Chris became an instant hit with the Luton supporters. He made his debut at home to Lincoln on September 18th 2001 - but scored a late own-goal which earned the visitors a 1-1 draw. However, he failed to let this setback affect him and from then on he was an integral part of Luton's promotion-winning side. A virtual ever-present as depicted by injury and suspension, he led by example and showed both superb aerial strength and also the ability to play the passing game.

He scored his first goal for the Hatters in a 3-0 home win over Bristol Rovers in February 2002 - and he hit the net twice more before the end of the season in home wins over Leyton Orient and Halifax Town. In total, he made 31 appearances during the season, all of them coming in the League.

Chris had another excellent season during the 2002-03 campaign as he once again established himself as a virtual automatic choice in the centre of Luton’s defence.

He featured in the opening five matches of the season, as Luton made a woeful start to life back in Division Two by losing their opening four matches. It was even worse for Chris, though, as he was sent off for a professional foul in a 1-2 loss at Plymouth Argyle in only the third match of the season.

However, he bounced back and helped the Hatters to climb up the Division Two table, establishing a strong central defensive partnership with several players, although manager Joe Kinnear appeared to prefer a partnership of Chris and Russell Perrett when both players were available for selection.

A regular throughout the campaign, Chris helped Luton to a 9th place finish in Division Two, a good return for the Hatters’ first season back in the Division, and at one time Luton were close to achieving a play-off place, a remarkable feat considering their awful start to the season.

Appearing in 44 matches in all competitions during the season, 40 of them in the League, Chris’ season was cut slightly short by an injury sustained in a 0-2 loss at Queen’s Park Rangers in mid-April. He did manage to find the net on one occasion during the campaign, in a 2-1 home win over Cheltenham Town in mid-October and he has firmly established himself as a fans’ favourite.

Chris had another excellent season during the 2003-04 campaign as the Australian central defender was not only once more a pivotal figure in defence, but also weighed in with some important goals when going forward for set-pieces.

He also earned the team captaincy from new manager Mike Newell during the season, although Kevin Nicholls, previously team captain, did still remain as the club captain.

Chris was always a regular in the centre of the Luton Town defence, usually alongside Emmerson Boyce, as his usual regular partner Russell Perrett spent almost the entire season out through injury.

Extremely commanding throughout the season and excellent in the air, Chris is a real fans' favourite and the £50,000 fee former manager Joe Kinnear paid Dundee for his services in 2001 looks to be a real bargain.

Chris made a total of 51 appearances in all competitions during the season (44 in the League) and he netted 3 goals, the first coming with a header in a 1-1 draw at Notts County in early September, and his second coming later that month when he fired home a superb finish in extra-time in an epic 4-4 draw at The Valley with Premiership side Charlton Athletic in the Second Round of the League Cup. His third and final goal of the season was once again very important, and came in March 2004, as he scored the opening goal with a trademark header in a 1-1 home draw with Plymouth Argyle, a side who the Hatters had built up somewhat of a rivalry with over the past few years.

Having helped the Hatters to finish 10th in Division Two, an excellent achievement considering the club spent the entire season in administrative receivership, Chris delighted both the management and the fans when he penned a new two-year deal at the end of the season.

Chris enjoyed a superb 2004-05 season as he helped Luton Town romp to the League One title and earn promotion to the Championship after some 10 years in the bottom two Divisions of the Football League.

Having been signed by former manager Joe Kinnear when the Hatters found themselves in the bottom Division of the Football League, it speaks volume for Chris’ ability that just four years later, he had played a major part in Luton Town playing their football just one step from the Premiership.

A regular member of manager Mike Newell’s side and always partnering Curtis Davies in the centre of the Hatters defence when the pair were available for selection, Chris played in 40 of Luton Town’s 46 League matches during the season and his dominant aerial force and ability to not only keep opposing forwards at bay but to also pop up with the odd goal himself, made him a vital member of the team.

Captaining the side when club skipper Kevin Nicholls was unavailable, Chris had a strong influence on the side and he weighed in with 5 important goals during the season. His first goal of the campaign earned a vital point in a promotion clash at Tranmere Rovers in early October 2004 and he then scored a powerful header to give the Hatters the lead in a 2-1 victory at Bristol City in December – Luton’s first win at Ashton Gate for some 30 years. Further goals followed as Stockport County were dispatched 3-0 at Kenilworth Road and in wins at Hartlepool United and Wrexham. His strike at Hartlepool was a tremendous solo effort from fully 25-yards and his goal at Wrexham was arguably one of the most important of the whole season – it pulled the Hatters level in a match that they went on to win and confirmed the League One title would be coming to Bedfordshire.

Chris was rewarded for his outstanding season by being one of six Luton Town players named in the PFA League One Team of the Season, as voted for by his fellow professionals.

Chris had another solid season with Luton Town during the 2005-06 campaign – the Hatters first season back at Championship level for some 10 years.

The towering defender, who formed a highly successful partnership at the heart of the Hatters defence with Player of the Year Markus Heikkinen, actually missed the beginning of the season after injuring himself in the pre-match warm-up at Crystal Palace on the opening day of the season.

His first appearance of the season came at Leyton Orient in the First Round of the League Cup – a match in which Chris scored a spectacular goal in a 3-1 victory. However, he had to be content with a place on the bench for the following two matches as Heikkinen partnered young star Curtis Davies in the centre of defence for victories at Leicester City (2-0) and at home to Millwall (2-1). In the clash with the Lions, Chris was thrown into action by manager Mike Newell as a makeshift striker in the 66th minute, playing a target man role and performing well in his unfamiliar berth!

With Davies showing sparkling form, the inevitable happened on transfer deadline day in August 2005 when he was sold for a club record £3 million to West Bromwich Albion. This opened the door for Chris to return to the starting line-up, where he remained an automatic choice in the centre of defence when available, playing alongside the Finnish international Heikkinen.

Chris unfortunately ended the season with an injury that forced him to miss the final month of the campaign. However, he did manage to make 30 League appearances during the season, scoring 2 goals – in defeats to Hull City (2-3) and Millwall (1-2).

Once again a solid performer, it looked at one stage as though Chris would earn a call-up to the Australian national squad ahead of their 2006 World Cup campaign, but unfortunately it never materialised and, with his injuries, and end of season hernia operation, Chris would not be on the plane to Germany.

Chris endured a rather solid if unspectacular 2006-07 season that saw him skipper the Hatters in their unsuccessful attempts to retain their Championship status.

Handed the captaincy following the summer sale of Kevin Nicholls, Chris missed opening parts of the season through injury and upon his return, he was forced to watch from the sidelines as Leon Barnett and Markus Heikkinen paired up in the centre of Luton Town’s rearguard.

However, he forced his way back into the side on a regular basis when he was fit and free from suspension, although he did have several defensive partners during the campaign due to a number of injuries.

Making a total of 18 League appearances during the season (7 as a substitute), Chris, as ever, always gave 100% and he was rewarded by then Hatters manager Mike Newell with a new two-year contract that would tie him to Kenilworth Road until June 2009.

Chris had another excellent season for Luton Town in 2007-08 as he continued to be a rock in the Hatters defence and lead by example as the club captain.

However, the season was to bring an end to Chris’ highly successful time as a Hatters players as, with Luton Town in administration, Chris, Luton’s longest-serving player at the time, was sold to Colchester United for £350,000. The transfer was a record fee paid by the U’s for a player and brought an end to more than six years for Chris at Kenilworth Road following a £50,000 move from Dundee in September 2001.

The move came on Thursday, January 10th 2008, a day of epic proportions for the Hatters as the administrator in charge of the club – Brendan Guilfoyle - sold no less than five players, including another popular and long-serving Hatter, Ahmet Brkovic, who moved on a free transfer to Millwall, and Wales international David Edwards, who joined Wolves for £675,000.

The transfers came as a huge blow not only to the Hatters fans, but also to manager Kevin Blackwell, who felt that the players, including Chris, had been sold for well under their true transfer market value. However, the administrator, Brendan Guilfoyle, and the agency brought in to deal with the transfers, argued that if the players hadn’t been sold, then Luton Town would not have enough money to fulfil their fixtures and end the season. Unfortunately, with Luton already docked 10 League points for going into administration and in the relegation places, many fans feared the worst and predicted relegation to League Two.

Chris had made 24 appearances in all competitions during the season prior to his move to Layer Road (17 in the League), and just days before his sale he had helped the Hatters to a tremendous 1-1 FA Cup Third Round draw with Premiership giants Liverpool at Kenilworth Road in front of the live Sky television cameras.

A rock at the heart of Luton Town’s defence for seven consecutive seasons, Chris left Kenilworth Road as a Hatters legend and he is respected so much by Hatters fans for being a true professional and a credit to the sport and himself. However, with a wife and three sons, everyone could understand why Chris needed to look after his family and stability was the key otherwise it is almost certain that he wouldn’t have wanted to leave Kenilworth Road. The Hatters players had only been paid three times since October 2007, that’s only three times in some four months.

A wholehearted and colossal figure for Luton Town, Chris will be dearly missed and he left Kenilworth Road with the best wishes of Hatters fans and staff alike after making 221 League appearances and scoring 14 goals during seven seasons in Bedfordshire.

He was unable to prevent Colchester from being relegated from the Championship during his first season at Layer Road, but he did go on to win his first full cap at international level for Australia.

Chris was brought into the Australian squad for the World Cup qualifiers against Iraq and Qatar, and started his debut match in a 0-1 defeat to the Iraqis in Dubai.

After arriving in camp and instantly ordering experienced internationals around the pitch, Socceroos manager Pim Verbeek praised Chris for his attitude, saying "He's an experienced player, he knows what he's doing and he's made a good impression on us. He's a leader. He's a very good header, he never panics."

In July 2008, Chris was named as Colchester United’s club captain. By May 2009, he had also earned 5 full caps for his native Australia at international level.

He continued to show his affection for the Hatters when spotted in the crowd amongst 40,000 Luton Town fans for the Johnstone's Paint Trophy final at Wembley against Scunthorpe United in April 2009.

However, things soon turned sour for Chris with the U's. Injuries and a change of manager saw him struggle to hold down a regular first-team place and after 32 League appearances for Colchester United, the left the club by mutual consent in July 2009.