Querrey, Young in Delray Beach quarters

Feb 24, 2017 - 3:43 AM Defending champion Sam Querrey has reached the Delray Beach Open quarterfinals by hitting 13 aces and winning 24 of 25 first-serve points in a 6-2 6-3 victory over Jared Donaldson.

Querrey, ranked 35th and seeded No. 4, saved both break points he faced and took exactly an hour to beat his 20-year-old opponent.

Querrey will face seventh-seeded Juan Martin del Potro of Argentina, the 2009 US Open champion, who beat Damir Dzumhur 7-6 4-6 6-3 in the late match.

In other action, Donald Young followed up his upset of No. 2 seed Ivo Karlovic by coming back to eliminate 19-year-old Taylor Fritz 4-6 6-3 6-4 and get to the quarterfinals.

Young, ranked 69th, had his left knee checked by a trainer after only five games and wound up dropping that set.

But Young managed to turn the match around despite finishing with 12 double-faults and facing 15 break points.

He now meets Belgium's Steve Darcis, a 6-3 7-5 winner against Nikoloz Basilashvili.

Source: AAP