Fitzer was last in action when he gave one of the most talked about performances in the Prizefighter series in May but lost to eventual winner Eamonn O'Kane.
Matchroom were so impressed by Fitzer's grit and determination that they made this bout with Lee a reality.
The Dubliner is putting in the hard hours. "We trained over Christmas," says coach Phil Sutcliffe. "We've been training hard for this one since well before Christmas. Anto has been getting great sparring and is more focused than he's ever been. He's also in the best condition of his life. Andy Lee knows what Anto has. He knows he's been underestimated.
"He knows Anto has a good chin and that he's very aggressive. It's going to be a good fight."
This is an opportunity Fitzgerald aims to grasp with both fists. "I want to prove I'm at that level," he says.
Rees revels in Street talk
Gavin Rees (32), the Welsh lightweight who handed Andy Murray his first defeat in 25, was shocked to hear himself mentioned on Coronation Street last week ahead of his WBC world title bout in the States with Adrien Broner. "Wonder if they can find a little role for me after I retire," he tweeted.