Floyd Mayweather just stepped up the mind games big-time with Conor McGregor -- claiming he and Paulie Malignaggi plotted to have Paulie spy on Conor's camp from the beginning!
"Paulie has always been my friend," Mayweather told FightHype.com ... as Paulie paid a friendly visit to Floyd's Vegas boxing gym. That's when he revealed the spy plot ...
"My friend called me and said, ‘Floyd, do you want me to go to (Conor’s) camp?’ I said, ‘Abso-f*ckin’-lutely.' ... Paulie, thank you for going over there like I asked you to do.