Rashford was replaced by Martial minutes before the final whistle
Manchester United forward Marcus Rashford will undergo a scan on his knee after experiencing discomfort during Sunday's 3-2 FA Cup fourth-round victory against Liverpool, manager Ole Gunnar Solskjaer said.
Rashford set up Mason Greenwood's equalizer in the 26th minute before netting his 15th goal of the season shortly after halftime to put United ahead 2-1.
He was replaced by Anthony Martial minutes before the final whistle.
Solskjaer's side added to Liverpool's woes as Fernandes capped a thrilling tie with his late strike at Old TraffordSports Tribune on Sunday, 24 January 2021
Bruno Fernandes' pinpoint free kick in the 78th minute earned Solskjaer's side a last-16 tie against West Ham United.
United are top of the Premier League with 40 points, two clear of Manchester City, who have a game in hand.
They host bottom side Sheffield United Wednesday.