Erik ten Hag blamed Manchester United's hectic schedule for Marcus Rashford's apparent groin injury that he sustained in their 2-0 Premier League win against Everton.
Rashford appeared to clutch his groin after he attempted to control a lofted pass from Christian Eriksen and he was forced off in the 81st minute.
The 25-year-old has not missed any of United's 29 Premier League games this season and has plundered 28 club goals this term. United's next highest scorer is Bruno Fernandes on 10.