Rory McIlroy suffered his worst PGA Tour finish at RBC Canadian Open, missing the cut amid equipment struggles and backlash from fans.

Golf superstar Rory McIlroy sparked quite a bit of controversy last month when he made the decision not to speak to the media after all four rounds of the PGA Championship. And it sounds like the PGA Tour has some "concerns" about that move from the superstar.

Rory McIlroy ended his silent treatment during all four rounds of the PGA Championship on Wednesday and kindly returned to speaking to the media. It took several questions but eventually the reigning Masters champion was asked about why he chose to go radio silent at Quail Hollow last month after it was reported that his TaylorMade driver had been deemed non-conforming ahead of the season’s second men’s major.