Friday, 15 February 2019:

JOHN MILLMAN of Australia returns the ball during his men's singles quarter-final match against Novak Djokovic of Serbia of the US Open at the USTA Billie Jean King National Tennis Center in New York City.

Australian John Millman has suffered an upset in the second round of the New York Open, losing to Guillermo Garcia-Lopez in a tight three-setter.

The world No.102 Spaniard broke the fourth seed's serve just once on his way to a gutsy 7-6 (7-4) 1-6 6-4 victory in two hours and 11 minutes.

It leaves Jordan Thompson as the only Australian left in the ATP 250 event after booking a quarter-final clash with big-serving American John Isner, who beat Bernard Tomic in straight sets.

Frances Tiafoe lost his first match since the Australian Open quarter-finals, falling to Jason Jung of Taiwan 6-3 7-5.

Tiafoe was the No. 2 seed after accepting a wild card into the field and had a first-round bye.

The American has a career-high ranking of No. 29 after his run in Melbourne, where he lost to Rafael Nadal.

Two other Americans reached the quarterfinals. No. 6 seed Sam Querrey, a finalist last year on Long Island, beat Radu Albot of Moldova of 6-3 6-4.

Reilly Opelka advanced when Denis Istomin of Uzbekistan was forced to retire after they split a pair of tiebreakers.

AAP