Jovanovic, who is currently team physician for UAE Pro League side Al Wasl, has spoken out about Vidic's ongoing recovery from a serious cruciate knee ligament injury following weekend reports which suggested he could be back in action by May to help boost United's Premier League title bid.
And he claims that Vidic, who suffered the injury during the Red Devils' Champions League elimination against Basel last December, has virtually no chance of being fit to play again this season given that he also tore lateral and media ligaments in his knee.
Jovanovic feels a successful comeback target would be for Vidic to be back in pre-season training with the United squad around the middle of July.
He told Sport 360: "I spoke with the Serbian doctors on Sunday and at the moment, all the medical information is being kept with the Manchester United team doctors, they are keeping it all in-house.
"However, with this type of injury, the normal time of recovery is six to nine months. He was injured last December to that would probably rule him out for this season."
Jovanovic added: "Nemanja is very motivated, and it's likely he'll be back in under a year from when he suffered the injury. May is probably too early, but knowing what immense strength Nemanja has he could be back in the summer."