Mayweather vs. Pacquiao Press Conference: Watch Live Stream of Pre-Fight Event

The sports world will have its eyes set on the MGM Grand Garden Arena in Las Vegas on Saturday night as pound-for-pound king Floyd Mayweather and Manny Pacquiao finally meet in the most anticipated fight in boxing history.

Mayweather will put his WBC and WBA welterweight championships on the line against Pacquiao's WBO version of the 147-pound title, and both men will be looking for a decisive result to finally put a stamp on their epic rivalry. 

Wednesday afternoon, the two men will meet for just the second time since announcing their huge fight at the final press conference. With the cast of characters expected to be on stage, including not just the fighters but their promoters and trainers, you can expect there will be plenty of fireworks.

Where: KA Theater, MGM Grand, Las Vegas

When: 4 p.m. ET

Mayweather is boxing's undisputed pound-for-pound king and its top box-office draw. He's undefeated, virtually unchallenged and looking to finally silence the critics who say he never wanted a part of Pacquiao. He made it clear that this was the fight he wanted—for legacy and financial reasons—in comments to Showtime in December (h/t ESPN.com), and it quickly came together after the fighters had a chance meeting at a Miami Heat game.

Pacquiao has long been viewed as the No. 1 threat to Mayweather's reign of boxing dominance. His speed, power and swarming style could be just the thing to finally press Money, who is known for his technical style built on defensive counterpunching, and answer the question of which fighter is the best of this era.

So join us Wednesday as the two fighters meet for one of the final times ahead of the big night Saturday.