US Open Profile: Sam Querrey

Ahead of the action starting on Monday, Baseline will feature a slew of players to watch out for during the US Open.

Age: 29

Rank: No. 21

Career-best U.S Open run: 2010, round of 16

2017 High: While Sam Querrey isn't known for going deep at Grand Slams, but he's known now for making the biggest upsets. He shocked an admittedly lackluster Andy Murray in Wimbledon to reach his first Grand Slam semifinal, which he lost to Marin Cilic. Defeating Rafael Nadal to claim the Acapulco title was another highlight of his season.

2017 Low: The American didn't fare as well on the clay this year, falling in his opening round at Roland Garros to a No. 67-ranked Hyeon Chung. He failed to put together more than two match wins in a row on dirt.

Best Social Media Moment: The 29-year-old doesn't post on Instagram often, but when he does, you can count on a picture of his dog Lou, or his girlfriend, or both.

US Open outlook: Surprisingly, Querrey has yet to make the second week in the US Open. However, with his recent climb to the Wimbledon semifinals, and top players like Djokovic and Stan Wawrinka out for the season, this may be his chance to ride on the waves of his Grand Slam splash. He needs to keep  his confidence, and winning his 10th career ATP title in Los Cabos last month should help.