Floyd Mayweather didn't get a standing ovation when he took his seat at the Manny Pacquiao fight this weekend ... he got booed ... and it's exactly what he wanted.

Accompanied by 3 massive bodyguards and sporting a $5,000 Gucci trench coat, Floyd made quite an entrance when he arrived at the Thomas & Mack Center in Vegas.

He wanted to create a scene. He wanted people to notice him. He wanted people talking about a Mayweather vs. Pacquiao rematch ... and he got his wish.

Now, the question is ... will it happen? Here's what Manny told reporters on Sunday:

"If the rematch happens, I want to make sure the fans love it ... I will give all I can to give my best to the fans.

Source:TMZ