Who would win in a fight, Kevin Garnett or Udonis Haslem?

Udonis Haslem might, because, when Kevin Garnett was in his prime, he almost got knocked out by Anthony Peeler, who was much smaller than him. Udonis Haslem, on the other hand, is much bigger than Peeler, and might knock him out quicker, especially considering that KG is older now and Udonis is quite strong.