Ghana: Man United defender Martinez out with knee injury

 Manchester United defender, Lisandro Marti­nez, could sit out the rest of the season after the Premier League club said the Argentina international suffered an anterior cruciate knee ligament injury in Sunday’s 2-0 home loss to Crystal Palace.

Martinez was carried off on a stretcher in the second half with what looked like a serious knee injury after a challenge on Palace forward, Ismaila Sarr.

“Assessment of the injury is ongoing to de­termine the appropriate course…