How serious is Floyd Mayweather about running it back one mo' gin with Manny Pacquiao?
According to the top guy at Showtime Sports, he's serious as a heart attack ... as in DEADLY SERIOUS.
TMZ Sports talked to Stephen Espinoza -- Prez of programming for Showtime Sports (and Conor McGregor's archnemesis) -- about the proposed rematch, and if would ever ACTUALLY happen.
"Having spoken to Floyd, I know he's deadly serious about it. He's very, very serious about wanting the fight."
The first one was a PPV record setter, and although there are a ton of people that wonder if this one would be as big (basically, some people don't care) ... Espinoza says next year, it's LIT.
"2019 sounds perfect. After I get a little bit of sleep after this event, we'll go at Mayweather/Pacquiao 2, I think."
That's if no one breaks a hip first (they're old as hell).