Manchester United manager Jose Mourinho has a worry over Marcos Rojo after the defender was withdrawn during the first half of the 4-0 win over Reading with an injury.
The Argentinian has been in outstanding form of late but was replaced by Phil Jones only 19 minutes into the FA Cup tie, even if the Reds were already two goals to the good at the time.
With Tuesday's EFL Cup semi-final first leg against Hull City on the horizon, followed by the Premier League showdown with Liverpool the following weekend, Rojo's fitness will need to be assessed.