Georges St-Pierre reveals his move up to middleweight is what caused him to hang up his gloves. St-Pierre took a four-year hiatus in 2013 where he relinquished his welterweight belt after nine title defenses. He then returned in November 2017 to challenge Michael Bisping for the middleweight title at UFC 217. Although he was successful in his pursuit of becoming two-division champion, it was the process to get to 185 pounds that hampered him physically
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