By Tom Gott Manchester United have confirmed that centre-back Harry Maguire is expected to miss the remainder of the Premier League season after suffering a muscle injury in training. Centre-back has been an area of major concern for Erik ten Hag recently, with Maguire the only natural option for the position over the past few weeks while Lisandro Martinez, Raphael Varane, Victor Lindelof, Jonny Evans and Willy Kambwala all nurse injuries. Ten Hag’s headache has now worsened after United confirmed Maguire will need three weeks to recover from a muscle injury which, given its timing, will bring…