
The five returned to the BayArena on Sunday morning to complete the performance tests in the Werkstatt that the rest of the squad put behind them on Thursday. "It was good! Everything went perfectly for me," said Kai Havertz. "You keep fit on holiday to make sure you pass the tests." But in the first two weeks after the international fixtures it was a question of putting his feet up – "switching off and doing nothing is also important. But then I started my individual training programme that they gave us to use at home," explained the 20-year-old.
The returnees first completed an individual warm-up routine in the training session before moving on to passing and shooting drills and finally joining the rest of the squad for a practice match. Havertz had a positive impression of the three new signings Kerem Demirbay, Moussa Diaby and Daley Sinkgraven: "We've done very well strengthening the squad and we'll definitely have fun with these players."
At the start of the week, Peter Bosz had 20 pros plus the two U19 players Adrian Stanilewicz and Marcel Lotka at his disposal. Jonathan Tah, Charles Aránguiz and Leon Bailey will join the rest of the squad at the training camp in Zell am See-Kaprun (15 to 21 July). Julian Baumgartlinger is still sidelined. The Austrian injured an ankle in the international break and is currently working on a one-to-one basis in rehab with a physiotherapist in Munich. Baumgartlinger is expected to return to Leverkusen on Wednesday.

Bayer 04 Leverkusen have agreed a loan deal with Bundesliga club Borussia Mönchengladbach for Argentinian striker Alejo Sarco. The 20-year-old joins Mönchengladbach with immediate effect for the rest of the season.
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After their first win on matchday 6 in the UCL league phase, Olympiacos are still in with a good chance of reaching the play-offs in the UEFA Champions League. The 2024 UEFA Conference League winners will be looking to go one better in their home match against Bayer 04 this Tuesday, 20 January (kick-off: 21:00 CET), but their stop scorer is unavailable. The lowdown on our next opponents.
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Panagiotis, known as Panos, Retsos wore the Bayer 04 jersey for three years. Including his loan spells, he was under contract with the Werkself for a total of four and a half years. "It's a very special club for me," said the 27-year-old, who returned to his boyhood club Olympiacos in 2022, in an interview with bayer04.de. The former Leverkusen man is now captain and a first choice for the Werkself's next opponents in the UEFA Champions League. Ahead of the clash on Tuesday night, 20 January (kick-off: 21:00 CET), Retsos talks about his fond memories of his time in Leverkusen and the imminent reunion with some of his former team-mates. He also talks about who brought him to Leverkusen and why he likes getting older.
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Four Bayer 04 players are in action at the 35th edition of the Africa Cup of Nations being played in Morocco from 21 December to 18 January 2026: Eliesse Ben Seghir for the hosts, Edmond Tapsoba with Burkina Faso, Ibrahim Maza for Algeria and Christian Kofane with Cameroon. Updates on the AFCON matches involving Werkself players...
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Bayer 04 Leverkusen will have to manage without goalkeeper Mark Flekken and forward Nathan Tella for the time being.
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