Norwich City boss Alex Neil has played down Martin Olsson's shoulder injury.
Olsson missed his country's internationals against Norway and Montenegro as he recovered from the operation.
But Neil says: “As soon as the season finished, Martin had an operation on his shoulder, which was an ongoing issue for him. There were a couple of games last season where he played through the pain.
“We needed to make sure for Martin's sake that it stopped being an ongoing issue.
“He's well into his rehab now, which is going well. The operation was successful; it's just a case of how quickly we can get him back, we'll know more in the next few weeks as we continue to monitor his progress. He'll be back in contention as close to the start of the season as possible."