Vardy could be out of action for the foxes for as much as two weeks
The current Premier League top scorer has been in excellent form this season scoring 15 goals in 19 games for the foxes and providing as many as five assists.
The striker made a record run of scoring in 11 consecutive games, although he has just one in his last six.
BBC Radio announced that the England striker will be out of action though Leicester are yet to comment.
Vardy is therefore set to miss a double-header of games away to Tottenham Hotspur, one in the FA Cup third round and one in the Premier League, while he also risks missing the visit of Aston Villa on January 16.
Lukaku is also on fifteen goals while Nigeria’s Odion Ighalo has 14 goals to his name.