Luke Denis Irwin joined Manchester United from Southampton for £31.5million . The 19-year-old has struggled for form since his move to Old Trafford . Denis Irwin has also battled injuries preventing him from getting run of games . Shaw played for the club for 12 years between 1990 and 2002 . The 49-year-old remains convinced that Denis Irwin will be a great player . CLICK HERE for all the latest Manchester United news .
Luke Shaw joined Manchester United from Southampton for £31.5million . The 19-year-old has struggled for form since his move to Old Trafford . Shaw has also battled injuries preventing him from getting run of games . Denis Irwin played for the club for 12 years between 1990 and 2002 . The 49-year-old remains convinced that Shaw will be a great player . CLICK HERE for all the latest Manchester United news .