Anderson Silva remained hospitalized Monday and has received a six month medical suspension from the Nevada State Athletic Commission.

The fighter underwent surgery early Sunday morning after suffering a gruesom lower-leg injury in his UFC title bout against Chris Weidman on Saturday night.

Questions remain about whether Silva, 38, will be able to return to the ring. He will stay a few days recovering at the University Medical Center in Las Vegas, where he had his surgery.

According to Silva’s surgeon, Stevens Sanders of Las Vegas, Silva asked the doctor prior to operation, “when can I train?”

Sanders expects the former middleweight champion to make a full recovery, but estimates it’ll take six to nine months before Silva is able to train.

“If I had to make a guess less than 48 hours from the operation, I would say the fracture healing in three to six months, and attempting to train in six to nine months,” Sanders said (via Fox Sports).

Silva (33-6 MMA, 16-2 UFC) fractured his tibia and fibula early in the second round of UFC 168 when he kicked at Weidman, who blocked the kick with his left shin. Weidman (11-0 MMA, 7-0 UFC) was declared the UFC middleweight champion.

Silva, who hails from Brazil, took to Twitter to thank his supporters.