GUYS! I've solved the video..
It is NOT Jon Jay in the video 100% (still can't be sure it's Manny). BUT this person is holding a bat, hard to see, in his LEFT hand. Any batter that holds a bat will hold it in the hand that is on the bottom of the bat. A right handed hitter (Manny) will hold it in his left. A left handed hitter (Jay) would hold it in his right.. AND BOOM GOES THE DYNAMITE!
I'll accept a slew of post likes for this.