2023 European Open

• Alexander Bublik def. Arthur Fils, 6–4, 6–4

• Petros Tsitsipas / Stefanos Tsitsipas def. Ariel Behar / Adam Pavlásek, 6–7^(5–7), 6–4, [10–8]

Country	Player	Rank1	Seed
GRE	Stefanos Tsitsipas	6	1
GER	Jan-Lennard Struff	27	2
KAZ	Alexander Bublik	35	3
FRA	Arthur Fils	44	4
GER	Yannick Hanfmann	53	5
ESP	Roberto Carballés Baena	61	6
FRA	Richard Gasquet	63	7
PER	Juan Pablo Varillas	65	8

• Rankings are as of 2 October 2023.[2]

The following players received wildcards into the singles main draw:

• David Goffin
• Mark Lajal
• Luca Nardi

The following players received entry from the qualifying draw:

• Alexander Blockx
• Benjamin Bonzi
• Maximilian Marterer
• Giovanni Mpetshi Perricard

• Matteo Arnaldi → replaced by Alexander Shevchenko
• Borna Ćorić → replaced by Jaume Munar
• Grigor Dimitrov → replaced by Hugo Gaston
• Ugo Humbert → replaced by Nuno Borges
• Sebastian Korda → replaced by Fábián Marozsán
• Jannik Sinner → replaced by Dominic Stricker
• Luca Van Assche → replaced by Dominik Koepfer

Country	Player	Country	Player	Rank1	Seed
MEX	Santiago González	FRA	Édouard Roger-Vasselin	22	1
GER	Kevin Krawietz	GER	Tim Pütz	40	2
GBR	Lloyd Glasspool	MON	Hugo Nys	55	3
NED	Matwé Middelkoop	GER	Andreas Mies	72	4

• Rankings are as of 2 October 2023.

The following pairs received wildcards into the doubles main draw:

• Zizou Bergs / Tibo Colson
• Michael Geerts / Gauthier Onclin

The following pair received entry as alternates:

• Victor Vlad Cornea / Petr Nouza

• Sander Arends / David Pel → replaced by Sander Arends / Quentin Halys → replaced by Victor Vlad Cornea / Petr Nouza
• Roberto Carballés Baena / Bernabé Zapata Miralles → replaced by Roberto Carballés Baena / Jaume Munar
• Lloyd Glasspool / Nicolas Mahut → replaced by Lloyd Glasspool / Hugo Nys