KIAWAH ISLAND, S.C. (AP) — Brooks Koepka’s preparation for the PGA Championship included playing the AT&T Byron Nelson last week in Texas — just to see if he could walk 18 holes without pain in his surgically repaired right knee.

He missed the cut, but the walking wasn’t a problem. Playing to the standard of a four-time major champion while doing 2 1/2 hours of rehab a day might be tougher.

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