Erik ten Hag has provided a rather concerning update on the fitness of Lisandro Martinez for Manchester United. Manchester United picked up an important 3-0 win over West Ham United at Old Trafford but the win was overshadowed by yet another injury to Lisandro Martinez. Midway through the second half, the Argentine was attempting to allow the ball out of play but the former Ajax defender was being harried by Vladimir Coufal, as the players fell onto the ground, it seemed that Martinez came off worse. The defender, after attempting to play on with the problem, was replaced by Raphael Varane and…