The England striker is one of United's highest earners but is absent during a crucial period for his club. Why?

Former England captain Alan Shearer has called on Marcus Rashford to knuckle down and get his Manchester United career back on track as he insisted it will be difficult for the forward to seal a move away from Old Trafford in January.

Rashford made Manchester United's matchday squad ahead of the Red Devils' Premier League fixture against Newcastle United. Although the winger did not make Ruben Amorim's XI, he is on the bench for what could be his first involvement since he played against Viktoria Plzen in the Europa League on Dec. 12.