They last manspatted almost a year ago over the purpose of Rory's conditioning work and given the recent injury news, it's a tad surprising McIlroy is pushing back at Chamblee's assertion that the best players hit down on the ball.
Maybe Chamblee's Twitter reminder upon this week's injury news started the latest squabble?
Anyway, McIlroy counters that they hit up on the ball and given what Trackman tells us, and the way Rory drives the ball, his pushback Tweets made sense.
Of course, this is reminscent of the days when Jack Nicklaus used to feud with Jim Flick over backswing footwork, or when Lee Trevino once nearly came to blows with Harvey Penick over the true meaning of Take Dead Aim. Just kidding!
For The Win's Luke Kerr-Dineen on the latest flare up.
Rory's measured reply to the photo analyzed by Chamblee:
McIlroy's young online army declared an 8&7 win and came through with some fun GIFs. This took the prize:
**They're still at not agreeing...