And so, Bryce Harper introduced a new hair style and a new batting stance in his return from the All-Star break. Let's just call the batting stance "stack and jack" and the hair cut "jack and stack" for simplicity. Via Washington Post:

Harper returned for the second half with a new batting stance, a change he revealed Friday afternoon during batting practice. Harper made three changes. He stood upright with less bend in his knees. He held his hands lower, level with his chest. He relaxed his left elbow so it pointed at the ground behind him.



"I just felt comfortable, and that’s the main thing," Harper said. "Going forward, I’m just trying to have some fun and relax a little bit."



"He gets that easy release to the baseball," Schu said. "He just has a lot less tension in there. He’s staying tall and downhill. Stack and jack."

Bryce Harper is 4-for-7 since switching his batting stance. #masnNationals pic.twitter.com/ySxXWSPEDj — Nationals on MASN (@masnNationals) July 20, 2014

Here's video of Harper's HR Friday night (he's 5-10 with a homerun so far with the new hair style):

(Screencap via MLB.TV/MASN video)