The Gervonta 'Tank' Davis vs. Ryan Garcia super fight -- which boxing fans have been begging for -- is finally happening on April 22 ... and it's set to go in Las Vegas!

Tank (28-0, 26 KOs) confirmed the news on Friday by tweeting, "April 22, 2023 Las Vegas It’s on!  #DavisGarcia GOOOOO."

The venue for the highly-anticipated fight is not yet public, but that's irrelevant ... bottom line, Tank and Garcia (23-0, 19 KOs) agreed to fight at a catch weight of 136 pounds for a 12-round non-title fight.

It will be a Showtime Pay-Per-View event, in partnership with Al Haymon's PBC, Golden Boy Promotions, and DAZN ... who all worked together to make it happen, according to TalkSport's Michael Benson.

The fight's been years in the making ... and the heat's been ratcheted up, especially lately. Both fighters have gone back and forth, talking crap to one another.

Many fans assumed the fight would never happen (and some still don't believe it will), but Oscar De La Hoya told us in April he was very optimistic about the fight not only happening, but RG easily winning, saying ... "Ryan Garcia wants to knock him out so bad. He's calling it in two rounds."

"Both guys are in their prime. Both guys are undefeated. It's gonna be a great fight," ODLH told us at the time.

But, not everyone expects Ryan to win. In fact, pound-for-pound king Canelo Alvarez recently told us he expects Tank to win ... citing his experience.