both wycombe and bury had expressed interest in signing sinclair for the 2009–10 season, but he eventually signed a one-year deal with wrexham. he played a major role for wrexham in the 2010–11 season, he played in the play-off semi final against luton, where wrexham lost 3–0 in the first leg and 2–1 in the second (5–1). he left the club in july 2011 after failing to agree a new contract on reduced terms.