Leading up to the start of the US Open on Monday, Baseline will feature a slew of players to watch out for.
Age: 22
Rank: No. 17
Career Best US Open Performance: Fourth round, 2015, '16
2017 High: Keys is back on the court. Sure, that doesn’t come with a title or a ton of ranking points, but considering she missed the Australian Open due to a left wrist surgery and then underwent another procedure for the same injury just weeks before Wimbledon, just playing is a plus. She reached the fourth round of Indian Wells in her first tournament of 2017, and then took out Garbine Muguruza and CoCo Vandeweghe to win the title in Stanford.