boss has fired a brutal message to over his future at .
Maguire has fallen down the United pecking order since the arrival of  and is now used a a back-up to Lisandro Martinez and Raphael Varane.
He made just 16 Premier League appearances last term and was regularly an unused substitute.
The 30-year-old centre-back, who still captains the club, has been linked with transfers to various teams including Tottenham and Newcastle United.
His international manager Southgate has now urged Maguire to move on and leave Old Trafford.
‘He is captain of an incredible football club so that is a difficult situation,’ Southgate said.
‘He will obviously be frustrated not to play as much as he would like but I think he has handled that really well.
‘We have got a few players with a lot going on, really. They have managed to park that brilliantly in their period with us  but there is potentially quite a few moves this summer that would be hugely important for their own careers and for us.’
Quizzed if Maguire needed more regular playing time at club level, Southgate added: ‘It is clear, really.
‘I think him and Kalvin Phillips are the two who have played the least in terms of guys in this squad this season but we have gone with them because in these two positions we think they are still ahead of others that might have played more.’
