With the year's second major at hand, this is when the world's top golfers aim to have their game in a nice rhythm.
That is easier said than done, and as you'll see, there are three big names who have done a nice job with this and three big names who haven't.
Regardless of the state of their current game, these golfers will all be giving their best effort, as they try to tackle the home of the 113th U.S. Open: the Merion Golf Club.
Rain has softened this short course, so scores are likely to be far lower than we are used to seeing at the U.S. Open. Also, according to weather.com, "scattered storms" are expected for the first two rounds.
Hopefully, the weather doesn't disrupt what promises to be an exciting tournament.
Check out the full field here, and proceed to find the hottest and coldest golfers heading into this major.
*All stats via PGATour.com.