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When it comes to sports passion, nothing brings out the crazy in golf fans more than the Ryder Cup.
Golf's premier international competition kicked off on Friday at Hazeltine National Golf Club in Minnesota. With Team USA looking to win the cup for the first time since 2008, the fans have come out in droves and many of them are wearing their national pride on their sleeve ... and their hats, and pants, and even socks.
Below is a look at some of the fans with the craziest costumes and attire from the opening day of the Ryder Cup.