Frustrated Manchester United players and management returned to Carrington for training after their disappointing loss in Spain.

With a goal conceded in the first minute, a red card, and signs of player dissent, the trip to the Spanish capital turned into a nightmare as Atletico Madrid secured their inaugural victory over an English team in either the group or league stages of the Champions League, finishing 2-0.

If a disappointing performance on the field wasn’t enough to dampen the spirits of fans, then Lisandro Martinez’s fiery critique of the Old Trafford hierarchy certainly added to the discontent.

SunSport revealed exclusively that Manchester United players are split over the defender’s remarks, where he openly challenged technical director Jason Wilcox and criticized the lack of support for both the manager and team over the summer.

Martinez conveyed his expectations for more accountability from the technical director.

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