How come Mayweather never fought Kostya Tsysu

[RozzySean]

at 140. Was there ever any negioations at the time between the two at 140. Who would have won ?

I think there were. I'm not positive, but I think Mayweather was going to fight KT if KT got past Hatton. Hatton messed it up for him so he had to beat Hatton silly and bounce him off a ring post.

Mayweather never took risky fights unless he was going to get seriously paid. Going for KT's IBF belt was higher risk, lower reward, compared to cherrypicking the WBC belt. So Mayweather was busy fighting title eliminators with "quality" opponents like Chop-Chop and Brussels in search his chance at Gatti's WBC belt and the large paycheck that goes along with a Gatti fight.

I don't think it was matter of Mayweather ducking Tzysu. A KT fight would be been there for him if KT had won against Hatton. It was all about $$$ and grabbing a LWW belt in the process. Floyd targeted Gatti from the time Gatti won his belt off Branco. Gatti's star was at it's highest at that moment. He was coming of the Ward trilogy and was one of the most popular fighters in all of boxing. Kostya was less known in the U.S., pretty much unknown to casual fans (unlike Gatti who is a household name) and Kostya had utterly destroyed his last two opponents. It made far better business sense to go after the WBC belt. I've always thought it was a bit of a biatch move, but it made financial sense. He doesn't call himself "Money" Mayweather for nothin'.