Volkswacht Bodensee - Defending champion Alcaraz reaches last 16 at US Open

China's Wu kept Alcaraz hopping with an aggressive baseline game, but Alcaraz came through 6-3, 6-4, 6-1 to line up a meeting with American Tommy Paul for a place in the quarter-finals.

Paul, seeded 20th, beat 15th-seeded Alexander Bublik 6-4, 3-6, 6-7 (4/7), 6-1, 6-3.

Alcaraz won the Australian Open in January for his seventh Grand Slam title. But the 23-year-old arrived at Flushing Meadows having not played since April as he recovered from a wrist injury.

His lack of match play -- and the pressure Wu applied -- was evident in 33 unforced errors, the Spaniard showing plenty of frustration along with satisfaction.

Alcaraz made a dream start, breaking Wu in the opening game on the way to a 3-1 lead.

But Wu settled in and broke back with an aggressive game to level the set at 3-3.

Alcaraz responded by winning the next five games. He pocketed the first set and took a 2-0 lead in the second before Wu halted his momentum, taking advantage of a loose service game from Alcaraz to break the Spaniard and get the set back on serve.

Wu saved break points in both the fourth and sixth games before Alcaraz broke in the 10th to take the set. The Spaniard saved a pair of break points in the first game of the third before pulling away for the win.

D.Schlegel--VB