Juan Ignacio Chela, nicknamed as "El Flaco" or "Liliano," is a former professional tennis player from Argentina. Chela was given a three-month ban from the professional tour in 2001 for failing a drugs test. Post-doping ban, Chela went on to reach the quarterfinals of the 2004 and 2011 French Open, and the 2007 US Open, attaining a career-high singles ranking of world No. 15 in August 2004.

Three-time defending champion Roger Federer defeated Novak Djokovic in the final, 7–6(7–4), 7–6(7–2), 6–4 to win the men's singles tennis title at the 2007 US Open. It was his fourth US Open title and 12th major title overall. With the win, Federer marked his third year in which he won three of the four majors. Also, he reached a record-equaling 14th consecutive major quarterfinal, matching Roy Emerson and Ivan Lendl. It was Djokovic's first major final appearance, and the first of an eventual record 36 major final appearances.