Villa's Tielemans ruled out for up to 10 weeks
Tielemans sustained the problem in Villa's 2-0 win over Newcastle United at St James' Park on Sunday.
The 28-year-old was replaced in the 74th minute following a clash with Newcastle's Lewis Miley.
Tielemans' extended absence adds to Villa's mounting list of injured midfielders, with Boubacar Kamara and John McGinn already sidelined.
McGinn will be out for two months with a knee injury, while Kamara is not expected back this season due to a knee problem.
"We know about Kamara, McGinn and Tielemans.