Ex-Manchester United striker Louis Saha has urged the Red Devils to address their defensive problems in January or risk missing out on the Champions League again. United dropped to 10th in the Premier League after the derby defeat to Manchester City Saha said: "I hope they finish in top four but I can't be sure.
"You could say the issues are at the back but it's about balance, finding the right midfielder to keep the ball and a defender to be strong at a certain point of the game.
"What (the manager) does in this window this winter will be very important for Manchester United."
