UPDATED 08:25 26th January 2016
Born in Wandsworth, Sidwell began his career with Arsenal. He spent time on loan under Steve Coppell at both Brentford and Albion, before moving to Reading in January 2003.
He helped Reading win promotion to the Premier League in 2005, and joined Jose Mourinho's Chelsea on a free transfer in the summer of 2007.
He's subsequently played in the Premier League at Aston Villa and Fulham - where he played alongside Bobby Zamora, Liam Rosenior and David Stockdale - and at Stoke City.
He's made in excess of 400 senior appearances, scoring 61 goals - five of those came in his 12-game spell with Albion. Sidwell has also represented England at under-21 level.