Marquez vs Tszyu

[Master]

I would only even give Tszyu a chance because you said '140'

This.

At their best weights I see Tszyu taking the first 3 rounds with sharp right hands, before Marquez starts making him miss in rounds 4-6, then making him miss and countering hard in 7, 8 and 9, and then overwhelming him when he puts him on the back foot in 10, 11 and 12.
UD Marquez. At their best weights.

If this fight was at 140 then that is Kostya best weight, it was never JMM.