Calls Out Gervonta 'Tank' Davis

Ryan Garcia says he isn't fazed by that explosive Gervonta Davis knockout -- telling TMZ Sports he's lickin' his chops to get a crack at Tank.

"I'm extremely confident I'd beat that boy down," Garcia tells us ... "He's just a big bully."

Garcia and Davis are 2 of the top young boxers in sports and it seems like it's only a matter of time before they meet in the ring.

Garcia tells us straight up he'd rather fight Tank sooner than later.

"We all know we can both knock people out. We all know we can put people to sleep that don't belong in the ring with us. But, one day we got to step up and go against someone who can also get slept. And, that’s what I'm trying to do. I'm trying to get in there…