Since they first broke on the...title scene. Obviously prospects improve into contenders but what guys have really either added or rounded out there skill sets significantly since first bursting onto the title scene.

The obvious two who jump to mind are the two fighting each other in December, Manny Pacquiao and Miguel Cotto.

With Pacquiao it's plain as day to see, it would be rough to say he's 1 dimensional even when he beat Barrera but just watched his fight in San Francisco versus Agapito Sanchez and it's amazing how one dimensional he was. The left was basically it for Pacquiao and stayed that way, his defense wasn't anything special and while the speed and power combination was there,his balance wasn't. Just remarkable how much he has improved under Freddy Roach. People who say Roach is overrated and just stumbled upon Pacquiao are just in plain denial. Look at the work he has done on Pac's in/out movement, balance, punch arsenal/selection, composure he has really become a different fighter.

Cotto is much the same, perhaps not as dramatically improved but he did add a whole new skillset. He now has a jab that is among boxing's best, he has learned how to win rounds, do more then just mindlessly go forward,ect. Look at his approach in the Ricardo Torres fight,which was mindless just walk the guy down, fire punches, wear him down. He won a firefight in that one. Fast forward to the Carlos Quintana fight and that was the beginning of the turnaround that saw him outbox Shane Mosley down the stretch of their fight.

Another one, Timothy Bradley. I got to give him credit, same thing go back to the pre-Witter days,I was never impressed all that much with Bradley. I thought he was lethargic sometimes even now he is one of the better high energy, high output fighters in boxing. He's done a good job shortening his punches and his speed has definitely increased, and by a good measure too.

Thoughts?