I think if some of the decisions that should've gone against Jr had
done then I don't he'd be as dismissed.
Fact is, he's seen as a manafactured fighter. He's not, but his '0' has been manufactured. There was no need for it. He still would've got the opportunities if he'd lost some decisions and been a crap fighter (look at Ronald Hearns) and as it is he has improved regardless of how tough he found the likes of Matt Vanda (and Carlos Molina :hey)
He's taken on loads of journeymen, grown into his physique, hit his physical peak at a good camp and has now beaten a couple of solid fringe contenders.
He's as feasible a challenge to Martinez as anyone else in the division, none of whom have really run through masses of quality contenders. He's looked better in his last few fights than Barker or Macklin did in theirs.
Will he beat Sergio? In all seriousness, I'm not really tipping him for glory. Both guys have weaknesses the other could potentially exploit. Sergio more athletic, Chavez bigger. It's got everything IMO. As good a fight you'll see at 160 this year IMO.
If Sergio gets to Chavez, then it's a very impressive win for him. The Mexican is a big, tough and game contender. Nothing more, nothing less. Back in the day there was nothing wrong with that