#2. Juan Mata
Another big name that is yet to live up to his credentials this year is Juan Mata, who came on from the bench again in the all-important clash against PSG. Mata has been an active name in the list of Premier League superstars, which includes his time at Chelsea under Jose Mourinho.
The Spanish playmaker has only managed 2 goals and 2 assists in the Premier League this season. He has looked off-color in the recent past under new manager Ole Gunnar Solskjaer.
Mata has played most of the season as a substitute, operating mostly on the right flank. Some may argue he has not been given sufficient time to prove his worth, but he has failed to capitalize and get something out of the chances he has been given.
Mata's finishing and defensive contribution have been insufficient for the new manager. The 30-year-old scored a free-kick winner against Juventus in the Champions League last November for the Red Devils, and he needs to rediscover his form this February if Manchester United are to perform well.