"I thought a couple of them were pointed at me a little bit because TGL, Race to Dubai, non-PGA TOUR events," Rory McIlroy said about Charlie Hoffman letter.

McIlroy responded to a recent memo that Charley Hoffman sent his fellow PGA Tour members over the weekend, in which Hoffman took a shot, seemingly, at McIlroy.

Golf Channel takes a look at the letter written by Charley Hoffman addressing PGA Tour members playing in TGL and European Tour events, and Rory McIlroy's response, where he says Hoffman is "criticizing his own product.