He played 25 holes on Friday but by the end Woods looked like he had played closer to 100. The reasons were many: Merion. An ailing elbow. The general stress of going after his 15th major. At least through 36 trying holes here, that remains a realistic goal. Though clearly struggling through an elbow injury sustained at the Players, Woods persisted on a day when many other players faltered. At three over after an even-par 70 in the second round, Woods continued to move up the leader board as the day went on. And even with the elbow, he didn't hesitate to provide a resounding affirmative when asked if he liked his chances.