![The American golfer is leading the British Open this weekend and is thriving in the difficult conditions at Royal Troon, but what’s that on his hat?](https://img.asmedia.epimg.net/resizer/v2/HHZUZYVZMPLKAI364EBDBVSJ3U.jpg?auth=f93271835341da7c536cc0d641e9dba9246fbc9ad7b1908d7b779c106b45ee59&width=360&height=203&smart=true)
Joseph McMahon
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