Peter Gojowczyk (33) and Dominik Koepfer (28) have been eliminated in the round of 16 at the tournament in Atlanta.

Koepfer lost 1-6, 7-6 (7-5), 3-6 to James Duckworth of Australia at the hard court event on Tuesday (local time). Gojowczyk lost 3-6, 6-7 (7-9) to Adrian Mannarino of France.

Wimbledon finalist Nick Kyrgios, Gojowczyk’s actual opponent in the last 16, withdrew shortly before the match due to injury (knee problems). Kyrgios, who had won the tournament in 2016 and was competing with a wild card, said: “I’m very upset that I can’t compete.”