New York - John Isner would rather spend his nights watching American football than follow the progress of his last remaining compatriot Sam Querrey at the US Open.
The 10th seeded American, who was knocked out 6-4 6-3 7-6(5) in the third round on Friday by German Mischa Zverev, also added that he was baffled at his poor form at night in his home grand slam.
"I struggle playing at night at this tournament," Isner told reporters. "I don't think I've ever won a match at night here. Haven't lost many matches in the day, so... I don't know. It sucks. You want to play better out there. I just didn't."
Isner, who had treatment on a sore neck, never looked comfortable on Arthur Ashe Stadium against an opponent who bothered him by rushing to the net. "It's what he does. He makes it tough. I'm not Djokovic or Murray hitting passing shots or something," the 32-year-old said. "So it's tough. Very frustrating, for sure."
Querrey is now the last American in the men's draw and Isner said he would not be following his compatriot's progress.
"I'd rather watch football," he said bluntly.
Results from day 5 of the US Open on Friday (x denotes seeding):
Sam Querrey (USA x17) bt Radu Albot (MDA) 4-6, 6-2, 6-4, 6-4
Mischa Zverev (GER x23) bt John Isner (USA x10) 6-4, 6-3, 7-6 (7/5)
Paolo Lorenzi (ITA) bt Thomas Fabbiano (ITA) 6-2, 6-4, 6-4
Kevin Anderson (RSA x28) bt Borna Coric (CRO) 6-4, 6-3, 6-2
Denis Shapovalov (CAN) bt Kyle Edmund (GBR) 3-6, 6-3, 6-3, 1-0 - retired
Pablo Carreño-Busta (ESP x12) bt Nicolas Mahut (FRA) 6-3, 6-4, 6-3
Lucas Pouille (FRA x16) bt Mikhail Kukushkin (KAZ) 2-6, 6-3, 6-4, 6-4
Diego Schwartzman (ARG) bt Marin Cilic (CRO x5) 4-6, 7-5, 7-5, 6-4
Carla Suárez Navarro (ESP) bt Ekaterina Makarova (RUS) 6-1, 3-6, 6-3
Venus Williams (USA x9) bt Maria Sakkari (GRE) 6-3, 6-4
Petra Kvitova (CZE x13) bt Caroline Garcia (FRA x18) 6-0, 6-4
Garbiñe Muguruza (ESP x3) bt Magdaléna Rybáriková (SVK x31) 6-1, 6-1
Julia Goerges (GER) bt Aleksandra Krunic (SRB) 6-3, 6-3
Sloane Stephens (USA) bt Ashleigh Barty (AUS) 6-2, 6-4
Anastasija Sevastova (LAT x16) bt Donna Vekic (CRO) 6-2, 6-3
Maria Sharapova (RUS) bt Sofia Kenin (USA) 7-5, 6-2