London - Greek seventh seed Stefanos Tsitsipas, tipped by many as a potential Wimbledon champion, crashed out in the first round on Monday.
The 20-year-old lost 6-4, 3-6, 6-4, 6-7 (8/10), 6-3 to world number 89 Thomas Fabbiano of Italy who next faces 40-year-old Ivo Karlovic.
Tsitsipas had reached the semi-finals of the Australian Open in January and the last-16 at Roland Garros as well as the fourth round at Wimbledon last year.
Wimbledon results on Monday (x denotes seeding):
Men
1st round
Novak Djokovic (SRB x1) bt Philipp Kohlschreiber (GER) 6-3, 7-5, 6-3
Denis Kudla (USA) bt Malek Jaziri (TUN) 6-4, 6-1, 6-3
Leonardo Mayer (ARG) bt Ernests Gulbis (LAT) 6-1, 7-6 (14/12), 6-2
Félix Auger-Aliassime (CAN x19) bt Vasek Pospisil (CAN) 5-7, 6-2, 6-4, 6-3
Kevin Anderson (RSA x4) bt Pierre-Hugues Herbert (FRA) 6-3, 6-4, 6-2
Janko Tipsarevic (SRB) bt Yoshihito Nishioka (JPN) 6-4, 6-7 (2/7), 6-2, 5-7, 6-2
Andreas Seppi (ITA) bt Nicolás Jarry (CHI) 6-3, 6-7 (8/10), 6-1, 6-2
Stan Wawrinka (SUI x22) bt Ruben Bemelmans (BEL) 6-3, 6-2, 6-2
Reilly Opelka (USA) bt Cedrik-Marcel Stebe (GER) 6-3, 7-6 (7/4), 6-1
Robin Haase (NED) bt Jozef Kovalík (SVK) 6-1, 6-3, 6-1
Karen Khachanov (RUS x10) bt Soonwoo Kwon (KOR) 7-6 (8/6), 6-4, 4-6, 7-5
Feliciano Lopez (ESP) bt Marcos Giron (USA) 6-4, 6-2, 6-4
Steve Darcis (BEL) bt Mischa Zverev (GER) 6-2, 6-4, 6-4
Roberto Bautista Agut (ESP x23) bt Peter Gojowczyk (GER) 6-3, 6-2, 6-3
Women
1st round
Elina Svitolina (UKR x8) bt Daria Gavrilova (AUS) 7-5, 6-0
Margarita Gasparyan (RUS) bt Anna-Lena Friedsam (GER) 6-4, 6-4
Marie Bouzkova (CZE) bt Mona Barthel (GER) 6-3, 6-3
Maria Sakkari (GRE x31) bt Bernarda Pera (USA) 7-6 (7/4), 6-3
Petra Martic (CRO x24) bt Jennifer Brady (USA) 3-6, 6-3, 6-4
Anastasija Sevastova (LAT x12) bt Kristie Ahn (USA) 6-3, 6-4
Karolína Muchová (CZE) bt Aleksandra Krunic (SRB) 7-5, 6-2
Heather Watson (GBR) bt Caty McNally (USA) 7-6 (7/3), 6-2
Anett Kontaveit (EST x20) bt Shelby Rogers (USA) 6-0, 3-6, 6-4
Monica Puig (PUR) bt Anna Karolína Schmiedlová (SVK) 5-7, 6-4, 7-5
Karolina Pliskova (CZE x3) bt Zhu Lin (CHN) 6-2, 7-6 (7/4)
Simona Halep (ROM x7) bt Aliaksandra Sasnovich (BLR) 6-4, 7-5
Mihaela Buzarnescu (ROU) bt Jessica Pegula (USA) 6-4, 6-4
Madison Keys (USA x17) bt Luksika Kumkhum (THA) 6-3, 6-2
Polona Hercog (SLO) bt Viktoria Kuzmova (SVK) 4-6, 7-6 (7/5), 7-5
Magdalena Rybarikova (SVK) bt Aryna Sabalenka (BLR x10) 6-2, 6-4
Veronika Kudermetova (RUS) bt Ysaline Bonaventure (BEL) 6-2, 6-4
Sofia Kenin (USA x27) bt Astra Sharma (AUS) 6-4, 6-2
Dayana Yastremska (UKR) bt Camila Giorgi (ITA) 6-3, 6-3
Viktorija Golubic (SUI) bt Iga Swiatek (POL) 6-2, 7-6 (7/3)
