Sheff Wed sign Mitchell from Millwall

Billy Mitchell came through the youth academy at Millwall [Getty Images]Sheffield Wednesday have signed midfielder Billy Mitchell on a free transfer from Millwall.The 25-year-old has signed a three-year deal at Hillsborough and becomes the club's eighth signing of the summer window.He will be reunited with fellow ex-Millwall midfielder Barry Bannan who re-joined the Owls earlier this month.Mitchell made 30 Championship appearances for Millwall last season as the Lions were eventually beaten in t