Leicester City are awaiting the results of a scan on the foot injury sustained by Danny Drinkwater during Tuesday's clash with Watford.
The midfielder only managed to play the first 45 minutes with manager Nigel Pearson forced to make a substitution at half-time.
Drinkwater, 21, left Vicarage Road on crutches with his side having lost 3-2 and medical staff are now waiting to find out the results of the scan.
The Foxes will hope the extent of the injury is not too serious with six names on the club's injured list already.
Frontmen Darius Vassell, Martyn Waghorn and Jeff Schlupp are enduring a long stay on the sidelines alongside midfielder Andy King.
Midfield pair Matt Oakley and Frank Moussa have also been unavailable after spending the last month recovering from injuries.
Drinkwater left Manchester United in the January transfer window when Nigel Pearson parted with £1million for the Old Trafford academy graduate.
The former England U19 international has featured in all four Championship fixtures this month, making three starts at the heart of midfield.