Meanwhile, 2010 Queen's Club champion and sixth-seeded Querrey of the United States took a 7-6 (13-11), 5-7, 7-6 (7-5) decision over Slovenian Aljaz Bedene for his 200th career win and fellow American Denis Kudla upset ninth-seeded Frenchman Benoit Paire 6-3, 6-4.
Two other scheduled second-round match-ups involving fifth-seeded defending champ Marin Cilic of Croatia and 10th-seeded Bulgarian Grigor Dimitrov were postponed because of rain and darkness.
First-round matches completed Tuesday saw No. 11 Julien Benneteau of France, No. 12 Lukas Rosol of the Czech Republic, No. 13 Jarkko Nieminen of Finland, No. 14 Denis Istomin of Uzbekistan, No. 16 Grega Zemlja of Slovenia and France's Michael Llodra each post a victory.