The Northern Irishman shot a faultless 18 holes on Friday at Quail Hollow.
Striker will play his final game at Parc des Princes on Sunday before completing an expected move to the Spanish champions
Sweden's Madelene Sagstrom shot a six under-par round of 66 in cold and wet conditions to grab a share of the lead at the LPGA Founders Cup with American Rose Zhang.Zhang held a two stroke lead after her first round 63 and was solid again with a four-under 68 marred only by a bogey on the par-4 16th.