Jordan Spieth is using being one of the first out to put some pressure on the rest of the field.
The 21-year-old, who won the Masters earlier on this year, shot four birdies in his opening eight holes to move into the overall lead by a shot on six under.
But, having started on the 10th, he then dropped two shots on the 18th to drop a shot behind the leaders.
On that note, it is time to bid you a Sportsday goodbye and point you in the direction of the live text commentary from the US Open you can follow on the BBC Sport website right here. Enjoy.