By the end of last season, J.J. Watt had "five partially or fully torn muscles in his core area" that required surgery, according to Tania Ganguli of ESPN.
Per Ganguli's source, "Watt had partially torn left and right abdominals and a partially torn right adductor longus. He also had a fully torn left adductor longus and a fully torn left adductor pectineus, which are two of the three muscles that connect the pelvic bone to the left thigh bone."
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