Cristiano Ronaldo vowed to return to Manchester United with the "same commitment and dedication as always" as the forward looks to play his way back into favour at Old Trafford.

The five-time Ballon d'Or winner was dropped for Sunday's 1-1 draw at Chelsea after refusing to come on as a substitute and leaving the bench early in last Wednesday's win over Tottenham.

United manager Erik ten Hag insisted the decision was to stick to principles and build a positive environment at the club, with the Portugal international only allowed to return to first-team training on Tuesday.

Ronaldo is expected to feature in Thursday's Europa League clash at home to Sheriff and made a promise to the fans as he looks to work his way back into Ten Hag's reckoning.

A post shared by Cristiano Ronaldo (@cristiano)

"Back on track, with the same commitment and dedication as always!," the forward posted on Instagram on Wednesday.

United will seal a place in Europa League knockout stages against Sheriff if they win, draw or avoid defeat by more than one goal.

The Red Devils will be without the injured Raphael Varane, though, while Ten Hag will make late decisions on the fitness of Harry Maguire, Donny van de Beek and Aaron Wan-Bissaka.