Yasiel Puig smashed a homerun against the Mariners on Sunday and bat flipped like he hit a walk off in the World Series. Bat flipping must be something Puig is working on. You know making sure he's not bat flipping on fly outs, as he's done in the past.
You would think that he might have some other parts of his game to improve. After all Puig was sent down to the minors during the season last year.