Manchester United left-back Luke Shaw will see a specialist to determine how bad the foot injury he sustained against Swansea is after a scan on Monday revealed he has ligament damage.
The 21-year-old England defender left the field after nine minutes of Sunday’s 1-1 draw at Old Trafford.
Centre-back Eric Bailly was also forced off injured against Swansea.
He joins a casualty list that includes top scorer Zlatan Ibrahimovic and fellow defenders Phil Jones, Chris Smalling and Marcos Rojo.
Shaw joined the Red Devils for £27m in June 2014 but broke his leg in two places during a Champions League game in September 2015, which kept him out of the game for almost a year.
He returned in August but has made only 11 Premier League appearances this season, having also suffered a minor groin tear in September.
In November, Mourinho questioned Shaw for missing the Premier League win at Swansea after he said he was not able to play.