If all you meant was that Conor isn't fit to lace Floyd's gloves in terms of boxing talent, then yes, obviously, without question. Not in general sporting terms though.In his own sport, yes, very capable
You may have typed that by mistake, but I can assure you that Conor has much more chance in a boxing match than Floyd would have in MMA. Floyd is not stupid (quite the opposite) and he's very unlikely to even give Conor the chance to punch him (he knows Conor can punch), but it is still possible that Conor could knock him out.and to be fair it would be a closer/different prospect if Floyd was to fight MMA rules.
That's not even possible in an MMA fight between the two. Conor could kick the crap out of Floyd well out of arms reach, or take him to the ground and beat him any way he chose. And even if Floyd did manage to knock Conor on his arse, Conor would just lie there and Floyd wouldn't be able to do anything, he'd have to get the ref to stand Conor up.