The Chile international moved to Manchester United in a swap deal from Arsenal during the 2018 January transfer window.
The Red Devils won the race to sign Sanchez despite reported interest from defending Premier League champions Manchester City.
Sanchez didn’t hit the ground running at Old Trafford and scored three goals in 18 games in the second half of the 2017-18 season.
His poor form has continued into the current campaign and Sanchez’s only Premier League goal so far came in a 3-2 win over Newcastle United at Old Trafford in October.
Sanchez made his first Manchester United appearance in over a month on Wednesday night when he came off the bench at St James’ Park in Ole Gunnar Solskjaer’s fourth game in charge.
The South American forward rewarded the interim Manchester United manager with an assist for Marcus Rashford’s goal as the Red Devils secured a 2-0 win against Newcastle.
Sanchez has now scored one goal and has made three assists in 13 games in all competitions this seasons.
Former Manchester United defender Neville is confident that Sanchez still has a lot to offer the Red Devils despite a disappointing initial 12 months at Old Trafford.
“Alexis Sanchez has been a world-class player for the last six or seven years,” Neville told Sky Sports.
“I don’t buy into this idea that in the last six months he’s become a bad player or someone who can’t play three times a week or his legs are gone. He still should be capable of destroying teams.
“Manchester United have Martial, Lukaku, Rashford, Sanchez, Mata and Pogba from midfield. That is an incredible front six to call upon.”
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