Boss Mick McCarthy said:
“Ronald’s been an important player for us and it’s a blow, but we can’t do anything about it.”
Zubar signed from Marseille in 2009 and has made only 15 appearances in the league this year, suffering earlier in the season with an ankle injury, and hasn’t played since February.
Wolves, fighting against relegation, sit 17th in the table but are boosted by the return of Stephen Hunt, Adlene Guedioura and Michael Kightly to training following injuries.
