Blues boss Gary Rowett has told the club's official website: “It’s a difficult one because Morro’s got quite a big swelling on his ankle.
“He landed on his loose foot and just rolled his ankle. He managed to play on for ten minutes which I hope would be a positive before limping off.
“At the moment it’s very difficult to get a timeline on it (the recovery period) until the swelling goes down.
“They’ve tried to immobilise the ankle in the boot to make sure he recovers as quickly as possible.
“This weekend is going to be out of the question but we’ll probably know more in a week.
“With an ankle injury it could be anything from two to six weeks. But we’ve got a good medical team and I’m pretty sure they’ll get him back as soon as they possibly can.”