I think that body-uppercut was his favorite combo. It's pretty incredible how much damage he does. In some cases, it doesn't look like he's getting any leverage at all and is just using his arm. The velocity he creates in such a short distance is mind-boggling.
If you look closely at his shoulders when he throws it, I think a reason why he gets even more torque on his uppercut (aside from his technique and immense strength), is cause he leans his shoulders so far over before throwing it. IN fact, his lean is so far over, to where his shoulders are at about a 45 degree angle to the floor, and the uppercut ends up being a cross between an uppercut and a right hook. Killer shot. :good
lovely thing about it is he lands the same combo with either the left or right hand and still explosive.