SAN FRANCISCO -- It's going to be a long day of anticipation at the Olympic Club on Saturday, with three-time champ Tiger Woods not set to tee off in the U.S. Open's third round until 3:05 p.m. PDT in the day's final group.

We'll keep you up-to-date all day long with our running Tracker, including whether Phil Mickelson can inch toward the leaderboard despite being 7 over and eight shots off the lead.

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