Rory McIlroy has been a controversial figure at Royal Troon this week, and the tournament hasn't even started.
After admitting his decision to skip the Olympics wasn't tough because he's in the sport to win not to "grow the game," he made some even more eyebrow-raising remarks Tuesday about golf's drug-testing policy.
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"I've been tested once this year but it was only a urine test," McIlroy said. "You can't really pick up HGH (human growth hormone) in a urine test, so I could use HGH and get away with it.