DUBLIN, Ohio - In what might be his final PGA Tour event on U.S. soil, Jack Nicklaus sent a fan to the hospital after hitting him with a tee shot, sent the gallery to its feet with back-to-back birdie putts inside 6 inches and spent most of the cool day Thursday at Muirfield Village holding his own until three bogeys on the last four holes dropped him to a 75 in the Memorial.

It was better than Vijay Singh (77), Davis Love III (78) and Mike Weir (76), but still 10 shots behind leader Jeff Sluman.