Ten years removed from his first appearance at the Miami Open, Marcos is back in South Florida for the ATP World Tour Masters 1000 event.
Marcos opens against Germany's Benjamin Becker on Thursday in a first round clash. It will be their fourth encounter, with Marcos taking all previous meetings without dropping a set. Should he win, he will face 24th-seed Nick Kyrgios in the second round with 13th-seed John Isner and fourth-seed Stan Wawrinka also looming in his section of the draw.
Marcos' best result in eight trips to Miami came in 2006, 2010 and 2014, when he reached the third round. He enters on the heels of reaching his 13th ATP World Tour final in Dubai last month.
