Hermann Hreidarsson is set to go under the knife once again.
But Steve Cotterill has allayed fears there is any concern over the defender’s career after the Iceland international picked up a knee injury.
Hreidarsson has been suffering from a problem picked up making a block tackle in the defeat at Cardiff earlier this month.
The Blues favourite, who has been handed the captaincy for the past two games, has fought back from a ruptured Achilles tendon that many thought would finish him.
Cotterill said this problem is totally unrelated and is nowhere near as severe.
The 36-year-old has played on with the injury against Swansea and Burnley.
But now the decision has to be made as to whether to call time on Hreidarsson’s season.
Cotterill said: ‘Hermann’s knee is not quite right.
‘He played last week and he did well to play then.
‘It’s not easy when you’re 36 to play games close to each other and it’s not easy when you’ve had a bit of an injury.
‘It’s nothing to do with his other injury, though.
‘He might have nicked a bit of cartilage in his knee. He’s got a bit of fluid on it.
‘We have to wait and see with that one. We may have to nurse him through.
‘If you asked him whether he wanted to have the op now or wait until the end of the season, the chances with Hermann is he’ll want to wait until the end of the season.
‘We have to wait and see. He may not need to have it done.
‘He’s had it since he came off at Cardiff. It’s been a bit dodgy since.
‘It’s a routine arthroscopy. He’ll be okay. It’s not career threatening – it’s not even five per cent of what he’s been through.’