 On 13 September 2008, Walker played a key role in Gloucester's victory at The Rec.He scored 1 try, 1 conversion, 2 penalties & 1 drop-goal to help Gloucester to a 21–17 victory.On 16 May 2009, having played Nine games and scored 74 points whilst on loan to Worcester Warriors from Gloucester, it was officially announced that Walker had signed a 2-year deal with the Warriors, after being released from his contract by the Cherry & Whites.