Louis Oosthuizen won last July's Open and so far this season Charl Schwartzel, Rory McIlroy and now Clarke have captured The Masters, US Open and Open.
In a month's time at the US PGA Chandler has the chance to complete his own "Chubby Slam".
Clarke was his first big signing over 20 years ago, soon followed by Lee Westwood. The world number two has yet to win his first major.
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