London - Seven-time champion Roger Federer reached the Wimbledon third round for the 15th time on Thursday with a 7-6 (7/0), 6-3, 6-2 win over Dusan Lajovic of Serbia.
Third seeded Federer will face Germany's Mischa Zverev for a place in the last-16.
"I struggled at the start and couldn't find my rhythm," said Federer who dropped his first service game to trail 2-0 to his 79th-ranked opponent.
"But once I got rid of the nerves I played some inspired stuff after that."
Zverev defeated world number one Andy Murray at the Australian Open this year, but Federer has won both his meetings against the left-handed serve-and-volleyer this year, including on grass at Halle last month.
Wimbledon results on Thursday, the fourth day of the 2017 championships at the All England Club (x denotes seeding):
Men
2nd rd
Milos Raonic (CAN x6) bt Mikhail Youzhny (RUS) 3-6, 7-6 (9/7), 6-4, 7-5
Alexander Zverev (GER x10) bt Francis Tiafoe (USA) 6-3, 6-4, 6-3
Grigor Dimitrov (BUL x13) bt Marcos Baghdatis (CYP) 6-3, 6-2, 6-1
Dudi Sela (ISR) bt John Isner (USA x23) 6-7 (5/7), 7-6 (7/5), 5-7, 7-6 (7/5), 6-3
Mischa Zverev (GER x27) bt Mikhail Kukushkin (KAZ) 6-1, 6-2, 2-6, 3-6, 6-4
Roger Federer (SUI x3) bt Dusan Lajovic (SRB) 7-6 (7/0), 6-3, 6-2
Dominic Thiem (AUT x8) bt Gilles Simon (FRA) 5-7, 6-4, 6-2, 6-4
Jared Donaldson (USA) bt Paolo Lorenzi (ITA) 6-4, 7-6 (7/0), 6-7 (0/7), 6-2
David Ferrer (ESP) bt Steve Darcis (BEL) 3-0 -- retired
Tomas Berdych (CZE x11) bt Ryan Harrison (USA) 6-4, 6-3, 6-7 (8/10), 6-3
Gael Monfils (FRA x15) bt Kyle Edmund (GBR) 7-6 (7/1), 6-4, 6-4
Adrian Mannarino (FRA) bt Yuichi Sugita (JPN) 6-1, 5-7, 4-6, 7-6 (7/2), 6-2
Ernests Gulbis (LAT) bt Juan Martn Del Potro (ARG x29) 6-4, 6-4, 7-6 (7/3)
Novak Djokovic (SRB x2) bt Adam Pavlsek (CZE) 6-2, 6-2, 6-1
Women
2nd rd
Angelique Kerber (GER x1) bt Kirsten Flipkens (BEL) 7-5, 7-5
Shelby Rogers (USA) bt Lucie Safarova (CZE x32) 6-7 (4/7), 6-4, 6-3
Sorana Cirstea (ROM) bt Bethanie Mattek-Sands (USA) 4-6, 7-6 (7/4) -- retired
Garbie Muguruza (ESP x14) bt Yanina Wickmayer (BEL) 6-2, 6-4
Agnieszka Radwanska (POL x9) bt Christina McHale (USA) 5-7, 7-6 (9/7), 6-3
Timea Bacsinszky (SUI x19) bt Kristna Kucov (SVK) 6-1, 6-0
Polona Hercog (SLO) bt Varvara Lepchenko (USA) 6-7 (2/7), 6-2, 6-2
Svetlana Kuznetsova (RUS x7) bt Ekaterina Makarova (RUS) 6-0, 7-5
Magdalna Rybrikov (SVK) bt Karolna Plskov (CZE x3) 3-6, 7-5, 6-2
Lesya Tsurenko (UKR) bt Viktorija Golubic (SUI) 6-1, 2-6, 6-3
Petra Martic (CRO) bt Denisa Allertov (CZE) 6-1, 6-4
Zarina Diyas (KAZ) bt Arina Rodionova (AUS) 6-4, 7-6 (7/4)
Alison Riske (USA) bt Kristina Mladenovic (FRA x12) 2-6, 6-4, 6-4
Coco Vandeweghe (USA x24) bt Tatjana Malek (GER) 6-4, 6-2
Anett Kontaveit (EST) bt Darya Kasatkina (RUS x29) 6-3, 6-2