Five things learned going into Friday's play in the U.S. Open:
Tiger Woods said his left wrist was fine. It's his game that was hurting him Thursday in the U.S. Open.
By the time Phil Mickelson got some caffeine in him and began making birdies on the back nine, the fans who braved wild warnings of hail and torrential rain in the opening round of the U.S. Open started to get the idea that something more interesting than the weather was happening at venerable Merion Golf Club. In a place that oozes history, a modern kind of story was unfolding.

Their 1-under totals of 139 made them the only players under par for the tournament; nearly half the field had yet to complete the second round, which was halted because of darkness.

Mickelson's 3-under 67 remained the standard when the first round was completed Friday morning, and the nasty rough and hard-to-read greens at Merion Golf Club took an even bigger bite once the second round was under way.
Play has been halted at the U.S. Open because of threatening weather in the area.
Play has resumed at the U.S. Open after a 3 1/2-hour delay due to a severe thunderstorm.

The horn blew at 8:36 a.m. Thursday, halting play after less than 2 hours into the first round of U.S. Open. It wasn't raining as players and spectators left the course, but soon there were thunderclaps over the Merion Golf Club, and lightning and downpours followed.
Under cloudy skies and with weather prospects dicey for the rest of the day, the U.S. Open returned to the Merion for the first time in 32 years.