Atlanta Open: Isner books spot in quarter-finals

Second seed John Isner edged out wildcard Ben Shelton 7-6 (8), 4-6, 7-6 (3) to move into the last 8 of the Atlanta Open at the Atlantic Stadion on Friday night.

Isner, ranked No 25, will face No 6 seed Jenson Brooksby next.

Shelton, ranked No 281, beat Indian qualifier Ramkumar Ramanathan (6-2, 7-5) in the previous round.

Atlanta ATP 250, other second-round matches (Atlantic Stadion, hard, USD 792.980, most recent results first):

• Alex De Minaur (3) beat James Duckworth: 6-4, 6-4
• Jenson Brooksby beat Mackenzie McDonald: 6-3, 6-4
• Adrian Mannarino (LL) beat Andres Martin (WC): 7-5, 6-3
• Ilya Ivashka beat Steve Johnson (LL): 4-6, 6-2, 6-4
• Frances Tiafoe (4) beat Taro Daniel (Q): 7-5, 6-4
• Brandon Nakashima (8) beat John Millman: 7-6 (8), 6-4
• Tommy Paul (5) beat SoonWoo Kwon: 6-3, 6-3