
Lukas Hradecky, Aleksandar Dragovic, Julian Baumgartlinger, Tin Jedvaj and Kai Havertz were still playing international matches at the beginning of June and exactly like Paulinho, who was involved in an international tournament for Brazil in Toulon up to the middle of June, will return to full training on Monday 8 July. Jonathan Tah (U21 Euros), Charles Aránguiz (Copa America) and Leon Bailey (Gold Cup) will join their team-mates over the course of the training camp in Austria (15 to 21 July).
There have been no changes to squad numbers. The new signings will have the following numbers: Kerem Demirbay (10), Moussa Diaby (19), Daley Sinkgraven (22) and returnee Niklas Lomb the number 36 again.
The squad for the 2019/20 season (As at 1 July 2019)
1 Lukas Hradecky
3 Panagiotis Retsos
4 Jonathan Tah
5 Sven Bender
6 Aleksandar Dragovic
7 Paulinho
8 Lars Bender
9 Leon Bailey
10 Kerem Demirbay
13 Lucas Alario
15 Julian Baumgartlinger
16 Tin Jedvaj
17 Joel Pohjanpalo
18 Wendell
19 Moussa Diaby
20 Charles Aranguiz
21 Dominik Kohr
22 Daley Sinkgraven
23 Mitchell Weiser
28 Ramazan Özcan
29 Kai Havertz
31 Kevin Volland
33 Jan Boller
36 Niklas Lomb
38 Karim Bellarabi

Bayer 04 have loaned Brazilian full-back Arthur to Bundesliga side Werder Bremen for one year. Arthur Augusto de Matos Soares – the full name of the right-back – has a contract with Leverkusen until 30 June 2031. At Werder, the 23-year-old is expected to make an impact and help the long-established club further consolidate their position in the Bundesliga.
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Bayer 04 have loaned defender Jeanuel Belocian to Spanish top-flight side Racing Santander. The 21-year-old defender joins the team currently ninth in La Liga until the end of the current 2026/27 season. Belocian’s contract remains valid until 30 June 2029. Last season, the 1.86-metre-tall U21 international was loaned to VfL Wolfsburg for six months.
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Rüdiger Vollborn has been at the club for 40 years, he holds the record number of Bundesliga appearances for the club (401) and is the only Bayer 04 player to have won both the UEFA Cup (1988) and the DFB Pokal (1993). And the Berliner stayed with the Werkself after ending his impressive playing career as he worked as a goalkeeping coach for the following nine years. Vollborn now works under the Bayer Cross as a fan liaison officer and club archivist. Since February 2021, the personal Black and Red lexicon takes Werkself fans under the heading of 'Rudi recounts...' on a brief trip through the history of Bayer 04 every month…
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Carlotta Wamser has completed a move away from Bayer 04 Women to join Manchester City in England’s Women’s Super League. The 22-year-old Germany international spent one year with the Werkself.
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Werkself-TV shows the highlights of the Bayer 04 women's 1-2 loss against VfL Wolfsburg on the 2nd matchday of the Google Pixel Women's Bundesliga 2026/27.
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