Marcos will make his return to Washington, D.C. for the Citi Open after falling in the Atlanta quarterfinals on Friday.
A 6-3, 6-2 exit to Matthew Ebden at the BB&T Atlanta Open capped a strong week on the hard courts of the ATP World Tour 250 event. Straight-set wins over Alex Bolt and Frances Tiafoe moved him into his first quarterfinal since February.
But fourth seed Ebden would prove to be too strong on Friday, saving the only break point Marcos earned to prevail after one hour and 12 minutes. Marcos fired five aces and saved five of eight break chances, but it wasn't enough.
Marcos, a finalist in Atlanta in 2015, will return to the site of another final run next week in Washington, D.C. Runner-up at the Citi Open in 2010, he will look to build on an 11-5 record in five appearances.
Marcos opens against Benoit Paire, having split their previous four meetings. They most recently faced off at the 2016 US Open, with Marcos winning in four sets. A potential second round meeting with eighth seed Hyeon Chung awaits, with former World No. 1 Andy Murray also in his quarter of the draw.
