[citation needed] By the time Clubb was ready to make his first team début, the London Broncos had been pushed into a kind of merger with Harlequins Rugby Union club and thus the team was called Harlequins RL by the time he played in the away fixture against the Bradford Bulls on 18 February 2006; a game which ended in a draw after the Bulls were awarded a controversial late equalizing penalty opportunity.

[5] He was, however, unable to play as he was called back for Harlequins RL to replace the unavailable Paul Sykes - who missed most of 2006's Super League XI - in the match against Wigan Warriors.

In 2008, England Rugby League was short of quality in the outside backs with the likes of Paul Sykes, Ade Gardner, Mark Calderwood and Martin Gleeson selected for the World Cup.

He went on to play more than 150 games for Harlequins RL and London Broncos in all competitions, eventually becoming the Captain, though for a short period as he was agitating to leave the club as his enthusiasm waned.

[6] Clubb was a utility player perceived by some Wigan supporters as an outside back due to his international appearances but by the manager as a squad man who could play as a forward.

Clubb was moved permanently to the front row at the start of the new Super League season after expressing his desire to play at prop.

[9] Clubb started the season impressively making 15 appearances and scoring one try before an illegal crusher tackle against Hull FC saw him requiring surgery.

Due to the crusher tackle he did not play for another nine months meaning he was not part of the squad that won the 2016 Super League Grand Final against Warrington, thus he had still not been on the winning side at Old Trafford despite Wigan's three visits in three years.

He played an important role against Cronulla-Sutherland Sharks helping Wigan to win the World Club Challenge for a record-breaking fourth time.

He played an important role in the narrow Challenge Cup final loss, his controversially disallowed try the reason Hull FC claimed the trophy.

[15] In round 5 of the 2021 Super League season, Clubb was placed on report for an alleged racist remark towards Hull FC player Andre Savelio.

[20] He was selected for the team to face Wales at the Keepmoat Stadium prior to England's departure for the 2008 Rugby League World Cup.