Alexis Sanchez embarks on personal Manchester United fitness regime to boost performances after Arsenal move

ALEXIS SANCHEZ is embarking on a personal fitness regime to help get up to speed at Manchester United.

The Chilean winger feels he is still off the pace after having an inconsistent season which has seen some mixed performances.

The 29-year-old has been staying behind after Jose Mourinho's training for extra gym sessions to improve his core fitness.

And he hopes the added work will help him get off to a strong start in his Old Trafford career after his switch from Arsenal.

A United insider said:: “He has been doing an extra half an hour after the main session has finished by himself.

"Nobody had asked him to do it but he feels there is an extra sharpness to be had.

“He has got his head down and you can see the steam coming off his body after working outside, it's so impressive.

“He doesn't have to do it, he just insists on it. You will not find a better pro around really, he's superb.”

Sanchez scored his first Premier League goal for United at the weekend in a 2-0 win over Huddersfield at Old Trafford.

He was part of a deal that saw him join the Red Devils and Henrikh Mkhitaryan headed the other way to the Gunners.