Manchester United manager Louis van Gaal will not take any unnecessary risks with his players as a vital week continues with Tuesday's crunch Premier League clash at West Ham.
Manchester City's faltering form means United will leapfrog their bitter rivals and head into the final weekend of the season in the fourth and final Champions League spot if they are victorious at Upton Park.
West Ham boss Slaven Bilic has demanded a response from his players ahead of their final outing at the famous old ground, with Saturday's 4-1 humbling at the hands of Swansea City leaving a bitter taste.
Van Gaal, meanwhile, has dealt with persistent injury problems over the course of the campaign, the latest being an Anthony Martial injury which will keep him out midweek.
Having opted to rest Marcus Rashford and Daley Blind for the trip to Carrow Road, he will continue to proceed cautiously for these final, pivotal encounters.
"It is always dependable on the data from my fatigue specialist," the Dutchman said in a press conference.
"We are going home and Sunday is recovery and Monday is recovery. I have to decide then on the data of my fatigue specialist who I am taking with me.
"It's always like that. It can happen that I leave players at home because they are too tired.
"Last week we played against Leicester and it was cold, six degrees or something. Against Norwich it is 25 degrees.
"It's a big difference and you have seen that, you have seen that on the faces of the players."
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- Goal