At last: Straight sets win over Tabilo puts Zverev in US Open last 16

Top seed Alexander Zverev picked up the pace at the US Open on Saturday, virtually sprinting to a 6-2, 7-6 (7/2), 6-2 victory over Alejandro Tabilo to reach the last 16 after laboring through a pair of marathon five-setters.Zverev will face Italian Luciano Darderi for a place in