As Phil Mickelson prepares to return to the site of one of his biggest heartbreaks, he admits that there is work to do.
Mickelson broke par in all four rounds at the Safeway Open, finishing the week at 10 under and at one point playing 48 straight holes without a bogey. But that score still left him in a tie for 44th in Napa, 11 shots behind winner Stewart Cink, and came after a week where Mickelson struggled off the tee. He hit only 12 of 56 fairways, a stat that's in part due to the tight confines at Silverado Resort & Spa but also ominous given what lies ahead next week.