Tomkins started the 2007 season in the Wigan Warriors' Senior Academy, where he was in good-form scoring 5 tries in one match against Hull Kingston Rovers' Academy. But despite this he was not called up into the first-team squad until 18 May 2007, for the Super League match against Hull Kingston Rovers. Tomkins suffered an ankle injury during the match and was out for 2-weeks, before returning to the Wigan Warriors' Senior Academy. He then later returned to the Wigan Warriors first-team for the match against the Catalans Dragons on 15 June 2007.