Huddersfield Town

Born in nearby Dewsbury,^[1] Worthington began playing for Huddersfield Town at the age of nine, eventually moving through the club's youth academy and into the first team. He primarily plays as a hard tackling central midfielder. Many Terriers fans regarded Worthington as being the main lynchpin of the Town midfield. Other midfielders have attempted to fill that role such as Michael Collins, Andy Holdsworth, Adnan Ahmed, Mark Hudson and loan signing Ronnie Wallwork, but fans felt that the Town midfield four was incomplete without Worthington in the middle.

He was made captain in 2004 after previous captain Efe Sodje was stripped of the captaincy after being sent off in a Football League Trophy match against Blackpool which Town lost 6–3 in extra time. He was given the captaincy over Nathan Clarke who was named vice-captain.

Worthington picked up 16 yellow cards in the 2005–06 season. Another other low point was that through injury he missed Huddersfield Town's high-profile FA Cup tie against Chelsea at Stamford Bridge in 2008.

Following Andy Ritchie's departure as manager of the Terriers in 2008, Worthington was relieved of his captaincy duties by caretaker manager Gerry Murphy, so he could focus on his playing duties. The captaincy was taken up by Rob Page.

Yeovil Town

After being out of new manager Lee Clark's plans, Worthington moved on loan to Yeovil Town on 30 January 2009. He made his debut the following day in the 1–0 win over Leyton Orient at Brisbane Road. His loan was extended by another month on 3 March, following impressive displays under new player-manager Terry Skiverton. He was recalled on 26 March. However, it was revealed on 17 April, that manager Lee Clark did not see Worthington in his future plans and said he was not going to offer him a new contract.

Oldham Athletic

On 26 May 2009, he joined Oldham Athletic, becoming Dave Penney's second new signing after Rob Purdie.

In July 2010 he was transfer-listed by the club, along with five other first team players.^[3] He joined Fleetwood Town on loan on 18 November 2010 returning on 2 January 2011.^[4] On 25 January 2011, he joined Bradford City on a one-month emergency loan deal.^[5] He was recalled by Oldham after one match and released by the club on 27 January 2011 allowing him to seek another club before the closure of the winter transfer window. .^[6] He then signed for Bradford on a permanent basis, signing a four-month contract.^[7]

Mansfield Town

In June 2011, it was announced that Worthington had joined Conference Premier side Mansfield Town on a one-year deal^[8]

FC Halifax Town

In July 2012, he joined FC Halifax Town on a one-year deal.^[9] Worthington was played in a more attacking role at Halifax than he had been used to previously in his career, but he had great success including two goals against Abbey Hey in the FA Cup in a 6–0 victory. Worthington also bagged a goal from the edge of the box on Boxing Day 2012 against Gainsborough Trinity. In January 2013, Worthington suffered an injury against Solihull Moors after going in for a challenge which won The Shaymen a penalty. He made his return against Droylsden in February and scored a goal in the 6–0 victory over The Bloods.