If you were JT or Winky or any other "big name" for that matter what would appeal to you more:-
1) Fighting the WBO-IBF Super Middleweight champion, with loads of risk
2) Fighting the undisputed Super Middleweight champion
I know what would appeal to me more, Joe asking to fight them before he has unified is similar to what Kessler could do. It is unappealing to any fighter to fight Joe at this stage, and if he thinks "after Frank Warren declared his next bout, scheduled for February, won't be the career-defining fight he's looking for. Calzaghe's next action looks like being a unification fight against Dane Mikkel Kessler."
Then he has a long night ahead. Any unification bout is a career defining fight.

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