Manny Pacquiao on Mayweather -- 'I Will Pray For Him'

Manny Pacquiao tells TMZ Sports he will pray for his rival Floyd Mayweather -- after learning about allegations that Floyd pulled a gun on his ex-fiancee.

Pacquiao was out at Ecco! restaurant in Tribeca (where he's promoting his upcoming fight with Chris Algieri) when we asked him about the lawsuit filed by Floyd's ex-fiancee Shantel Jackson.

As we first reported, Jackson accuses Mayweather of doing horrible things to her over the years -- including domestic violence, public shaming and forcing her to hand over her engagement ring at gunpoint.