The 25-year-old has endured a wretched run with injury this season, with a broken arm and a fractured finger restricting him to just two games.
He hasn't played since the round six loss to Hawthorn when he suffered the finger injury, but coach Brett Ratten maintained he was a realistic selection option this week.
"Carrazzo had the pin out yesterday, so he'll train today which is pleasing," Ratten said.
"His fitness levels are outstanding. We'll just see how he handles the footy and how he goes about it today."
Shaun Grigg and Heath Scotland have also thrown off nagging injury concerns and are in the mix to take on the Lions at the Gabba.
In a quirk of the AFL's fixturing system it will be the second time the teams have faced off in the first half of the 2009 season, with the Blues emerging victorious from their round two match-up.
Ratten had no issue with the short space between meetings.
"I think the AFL do a pretty good job. Whether you play them in round 11 or round 19 it doesn't matter, because you've got to play them twice," he said.
"We know from day dot when the draw comes out who we've got, so it's fair."
The Blues have not won successive games since the last meeting with the Lions and Ratten highlighted the need for his side to translate good form within matches into premiership points.
The Blues have won 25 quarters of football this season and sit behind only Geelong and St Kilda (30 quarters won each), yet find themselves in the logjam of teams in the middle of the ladder on five wins.
"We've had a few ups and downs, there's no doubt about it. We've lost a few close ones ... and we've learnt a few lessons along the way," he said.
"We sit third from quarters won so we must be doing something, but I suppose the consistency is what we're on about.
"Where we sit at 5-5 the ledger is squared, so before the break these games are really important for us to finish off on a good note."
