 By the 1989–90 season Newhouse was a member of the England youth squad and a full-time professional, and in February 1990 he moved to Wimbledon for an initial fee of £100,000.Newhouse managed just seven starting league appearances in as many years with the "Dons", though he did play in the Premier League, in a 3–2 defeat to Aston Villa at Selhurst Park on 3 October 1992.He was loaned out to Tranmere Rovers, but did not make it onto the pitch at Prenton Park.