Sheffield United have signed former West Ham United midfielder Ravel Morrison on a one-year deal after he impressed them during a trial. The 26-year-old joined the Hammers in January 2012 from Manchester United, but featured just once for the remainder of the season before joining Birmingham City on a season-long loan the following term. Morrison returned to West Ham the following season, scoring five goals in 21 games in 2013-14 before leaving for Queens Park Rangers in February for a 93-day loan. The lack of discipline of the former England international saw the Hammers let him join Lazio with just a year left on his contract.