Tiafoe topples Del Potro to set up all-NextGen bottom half in Delray Beach
Frances Tiafoe ousted second-seeded Juan Martin Del Potro 7-6(6), 4-6, 7-5 in round two of the Delray Beach Open on Thursday night, advancing to his second ATP quarterfinal in as many weeks. Tiafoe struck 17 aces and saved 14 of 16 break points to pick up the biggest victory over his career after two hours and 26 minutes. […]