Alexis Sanchez's Premier League debut for Manchester United didn't exactly go to plan on Wednesday night.Beating Tottenham would have been the perfect start given the Chilean's previous relations to Arsenal, but United were utterly dominated at Wembley, losing 2-0.Sanchez didn't have the best game himself and the statistics only reinforce just how poor he was.According to Sky Sports, Sanchez didn't attempt a single shot at goal against Tottenham nor create any chances for his teammates.Furthermore, the 29-year-old completed only one take-on and touched the ball just twice in Spurs' 18-yard box. Safe to say it was a debut to forget.Sanchez will undoubtedly improve for United and Jose Mourinho did manage to find one or two positives about his performance, such as his work rate.But in his post-match press conference, Mourinho identified a potential flaw in Sanchez's game that also happened during his time at Arsenal.Sanchez was given a new position in the second half as Mourinho tried to turn the game in United's favour, but instead of playing there, the winger dropped deeper to try and dictate.This isn't Sanchez's game, nor has it ever been, so he should have listened to Mourinho's instructions and played closer to Romelu Lukaku."He worked hard, but again the transformation the game had, the game was not for him," said Mourinho.

"In the second half, I tried to give him a position where he could be closer to Lukaku but then he felt the need to drop too much to organise.

"He gave everything, good effort and this is a good feeling for me to know that the player is available with that spirit."

A highlights reel has emerged of Sanchez's performance against Tottenham and it proves Mourinho's point that he tried to make things happen from deep too often in the second half.

With Paul Pogba off the pitch, Sanchez clearly felt it was his duty to act as playmaker, whereas he should have been supporting Lukaku and looking for a goal.

SANCHEZ'S HIGHLIGHTS VS TOTTENHAM

Certainly something Mourinho and Sanchez need to work on, especially if he's to justify the £350,000-per-week wages they're paying him at United.