The Inter Milan winger has been on-loan with Bayern this season.
Olic told TPortal: "Perisic had a very serious injury, just when he was in excellent shape. He was sidelined for three months, but now he's back to training regularly.
“It is clear that he will need a little more time to return to the level he had reached in the previous months but the most important thing is that he is no longer in pain and has returned to training.
“The club is very happy with him. Now Bayern will try to lower the price as because of this pandemic the purchasing power of the clubs is even weaker and I believe that in the next two or three weeks the clubs will sit down at the table and try to find an agreement."