If you popped him in there with no time to prep for MMA, he'd get killed by kicks and clinch fighting from Silva. Silva might even go for a takedown, as he did when he fought Lee Murray, and then Jones would be completely lost. But when I've seen boxers enter MMA, the kicks alone screw with their range and confidence. Jones might land a hook that could put Silva out, sure, but in this matchup that's the only tool he's got.

And the 4oz. gloves would generally help him. In his prime, I seem to recall Jones relying more on movement than standing still and blocking (see Winky Wright for that defense), and in that case, the difference in glove size wouldn't effect his defense. It would, however, allow him to hit a little harder.

In boxing he only had to worry about hands coming at him, not hands elbows, knees, feet and takedowns. if the got pinned against the cage what would he do? would he hold onto them like he would in boxing? of course he would, then he would be taken down and pounded or submitted because on the ground he would be like a turtle on their shell. He would have been useless in MMA

You cannot compare 2 sports because if you put an mma fighter in a boxing match with Roy Jones junior he would tear them apart even now. the same as even an average MMA guy would destroy Roy Jones jr in a cage.

Could roy jones in his prime have won against Anderson Silva in the cage?? Would Roys speed reflexes power and athleticism have made up for his lack of MMA knowledge? Would the 4 ounce gloves hinder or help roy? Mma has never had a truly great in his prime boxer attempt it, could roy win? Or would he be another james toney. SMART POLITE ANSWERS PLEASE.