WALTHAM – Glen Davis  has just struck nickname gold.
On Friday, he was asked if he was ready to help assume the huge shoes of Kevin Garnett , who is out with a sore right knee.
“I thrive at situations like that, being the underdog,” Davis began. “No, I’m not KG, I’m not at all. I’m Big Baby from LSU, Baton Rouge, Louisiana. I’m not the Big Ticket, I’m the Ticket Stub.”
And he was far from done there.
“Don’t count the Ticket Stub out,” he added. “You might need the ticket to get into the game but you leave with the ticket stub because you’ll never forget this game. You’ll need it as a souvenir.”
Nicknames won’t beat the Chicago Bulls . Good defense will. And Davis, the likely starting replacement for Garnett, said he’s more than ready to accept the challenge of helping to contain the Bulls, especially in the paint, where Celtics  coach Doc Rivers  said Friday the series will be won.
“I am ready, I am excited, I am ready to embrace this opportunity,” Davis said. “You don’t get opportunities like this. This does not come. A second-year guy coming off the bench. Last year, coming off the bench, getting an opportunity to start and be a player in the playoffs, having a chance to go to The Finals and the Eastern Conference Finals, it’s unbelievable.”
Maybe it’s time to believe in Big Baby. The Celtics do.