There may not be a more punishing course on the PGA Tour than Oakmont, and while several golfers have battled their way through 36 grueling holes between Thursday and Friday, few wear their emotions as openly as Rory McIlroy.

Over the past several weeks, golf superstar Rory McIlroy has caused quite a stir with his behavior during recent major championships, as he refused to speak to the media after six consecutive rounds at major tournaments.

Rory McIlroy repeated at the US Open a controversial conduct criticised by fans and media. The 35-year-old posted a 41 over his closing nine holes, ultimately signing for a four-over 74 in Thursday’s opening round.

While much ado has been made about a bitter McIlroy's resentment towards LIV Golf players, his relationship with Koepka is more of a friendship that has had its rifts.

McIlroy has pointed out that the PGA Tour, which does not run the U.S. Open or PGA Championship, does not have a policy that requires players to speak with the media, and some have speculated that his increasing reluctance to talk with the media was some sort of statement.

Wild tee shots and media boycotts: The pride of Northern Ireland is acting oiut of character after finally winning the Masters.

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