He doesn't train any less hard than anyone else. There is such a thing as different body types (for example, even at 5% body fat and having worked on my abs, I don't have a 6-pack [but should, on paper]) and Deron's is that of a ****ing thick, strong dude. You don't have to look like Ray Allen to be in great shape, and Ray Allen couldn't look like Deron and play in the league if he tried, the dude is just cut. Same with Rondo. KG couldn't put on the weight everyone thinks he should, even though he's sufficiently strong and pretty much always has been. The only thing I can ask of players is that they be the best player they can be, and Deron does that.Pictures from August. I don't think Deron needs to have a Ray Allen type of body though, he can be pudgy and use it to his advantage. Although, if he were to get ripped, or big, he would be scary.
Besides that, rest is paramount for healing injuries and I'm pretty sure Deron was more banged up than he wanted to let anyone know. He's fine.