Eastbourne - Top seed Novak Djokovic passed his first grass-court test of the season on Wednesday, defeating Canadian qualifier Vasek Pospisil 6-4, 6-3 to reach the quarter-finals at Eastbourne.
The Serb is playing a pre-Wimbledon event for the first time since 2010 and will next face the winner from a pair of Americans, Donald Young and Jared Donaldson.
The three-time Wimbledon champion got onto court as first match after rain washed out Tuesday play - save one game in the Djokovic match - leaving organisers with a backlog to get through.
The former number one claimed his fifth victory without a defeat against Pospisil, who is now 4-22 lifetime against Top 10 opponents.
Djokovic, who will be advised by Andre Agassi at Wimbledon, is the second-highest-ranked men's player to ever compete at the Aegon International behind then-number two Marcelo Rios in 1998.
Results from the rain-hit ATP and WTA grass-court tournament at Eastbourne on Wednesday (x denotes seeding):
Novak Djokovic (SRB x1) bt Vasek Pospisil (CAN) 6-4, 6-3
Donald Young (USA) bt Jared Donaldson (USA) 6-4, 7-5
Daniil Medvedev (RUS) bt Sam Querrey (USA x5) 6-3, 7-5
Mischa Zverev (GER x6) bt Ryan Harrison (USA) 6-4, 7-6 (11/9)
Thomas Fabbiano (ITA) bt Franko Skugor (CRO) 7-6 (7/5), 6-4
Dusan Lajovic (SRB) bt Jeremy Chardy (FRA) 6-4, 6-7 (5/7), 6-3
Richard Gasquet (FRA x7) bt Francis Tiafoe (USA) 5-7, 7-6 (7/4), 6-3
Johanna Konta (GBR x5) bt Sorana Cirstea (ROM) 6-2, 6-2
Peng Shuai (CHN) bt Timea Bacsinszky (SUI x15) 7-6 (9/7), 2-6, 6-4
Barbora Strycova (CZE) bt Garbine Muguruza (ESP x11) 6-1, 6-0
Tsvetana Pironkova (BUL) bt Monica Niculescu (ROM) 6-0, 6-4
Simona Halep (ROM x2) bt Duan Ying-Ying (CHN) 3-6, 6-3, 6-2
Svetlana Kuznetsova (RUS x7) bt Mona Barthel (GER) 4-6, 7-5, 6-2
Kristina Mladenovic (FRA x9) bt Zhang Shuai (CHN) 6-0, 6-4
Angelique Kerber (GER x1) bt Kristyna Pliskova (CZE) 4-6, 6-1, 7-5
Elena Vesnina (RUS x12) bt Veronica Cepede Royg (PAR) 6-3, 6-3