Nate Campbell was 23-0(21) before Casamayor dealt him his first loss. A lot has happened since that fight five years ago, but Katsidis 23-0(20) might have the same fate and get outboxed. But, like Campbell, he can rebound if he does lose to Casa. It all depends on what Casamayor shows up. Casa has been down this road many times before. Katsidis hasnt and that may be the deciding factor.