Mavs fan out there, did you watch the recent interview with Kristap Porzingis?
Look at his built. I've noticed that his body becomes more bulk up. Damn, what did he do while out on NBA (aside from involving into a brawl lol)? Like he isn't came from an injury.
Maybe others will see it as a disadvantage since he might become slow but for me, he will be like an athletic version of Dirk Nowitzki.
Of course he should build up muscles to not easily get overpowered by his match ups. It's not as if he will get slower but it's a must to bulky up a bit for this physical game. I mean slim players always gets overpowered by muscular players.