
"I've been the pandemics officer at Bayer 04 for five years. But that was more of a paper tiger – nobody actually expected it to be something serious," explained the 57-year-old in the latest 'Werks11 podcast'.
Since then, daily routine has changed dramatically for the trained surgeon, who has also run a group practice in the Leverkusen suburb of Quettingen for over two decades, "On the one hand, we had to help develop the hygiene protocols for the teams at Bayer 04 but we also have our own business, of course. A lot of people work here in different areas who we are also responsible for. We had to inform them and develop appropriate plans so they can continue to work safely," said Dittmar as he drew a positive assessment: "Up to now, everything has gone brilliantly. I have to praise the teams and the whole set-up – everybody is doing great in spite of the circumstances."
The fact he is able to work for a Bundesliga side – and indeed for his favourite club – is described by the Leverkusen-born doctor as a "dream." His employment at the Werkself, initiated in 2002 by the then general manager Reiner Calmund, came about by chance. "Back then, his wife came to see me as a patient. I had a brain wave and I was really able to help her. Calli brought that up in another situation and hired me as a doctor at Bayer 04," said Dittmar who, at that time, had been a season ticket holder in B block at the BayArena for many years.
Back then it was only a part-time job – today, almost 20 years later, the Werkself club doctor has risen to be the director of the medical department at Bayer 04 and now manages 40 employees. The 'Werkstatt' training and rehabilitation centre he helped to develop is now known far and wide. "We have one of the biggest medical departments in the Bundesliga and are leading the way in Europe." Success for him does not just come from being up-to-date from a medical and sports science viewpoint but also primarily because, "I have outstanding members of staff who I am very proud of. I'm actually not an expert in any area. But I have a lot of experts around me and I give them the opportunity to demonstrate their strengths to the maximum."
In his 18 years at Leverkusen, the father of four has not only seen a lot of players come and go but also experienced a lot of other events first hand – for example the bitter year of 2002 where the Werkself 'only' finished second in the Bundesliga, DFB Cup and Champions League. At the same time, 'Kalla' as he is called at Bayer 04, is absolutely aware of the importance of his employment. Above all, that includes the spontaneity and immediacy that sometimes comes with the job such as with transfers and the associated trips abroad. "Particularly with the transfers where you have to be a step ahead of the competition it can't fail because of the medical side," explained Dittmar. He has been to Brazil six times but only spent two nights there. Sometimes things have to happen very quickly. That makes it even better that for him work is still "huge fun" and he is able to deal with all the tasks with ease despite professional and private obligations…
The complete podcast with Dr. Karl-Heinrich Dittmar is available (in German) via the usual online providers –
on Soundcloud, iTunes or Spotify.

The penultimate Bundesliga matchday of the calendar year marks the end of an eventful first half of the season for the Bayer 04 Women. After seven wins, one draw and four defeats from the first twelve games of the season, coach Roberto Pätzold's team can go above Werder Bremen in the table with a win on Friday, 12 December (kick-off: 18:30 CET).
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The third showdown in the VBL Club Championship 2025/26 kicks off for the Leverkusen eSports team this Thursday, 11 December (live on the B04eSports Twitch channel from 19:00 CET). In the online preliminary round, the Black and Red will once again take on six previously drawn opponents for a place in the Top 16 and the associated entry into the offline knockout round, which will take place at this third showdown on 19 December in Cologne. Showdown One winners Bayer 04 will face FC St. Pauli, who won the second showdown last month, among others. The lowdown on first three opponents in this online preliminary round.
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Alejandro Grimaldo, of course! With his late equaliser (88') in the Champions League clash against Newcastle United, the Spaniard rescued a point for the Werkself, who took the lead through an own goal by Newcastle's Bruno Guimaraes (13') but went with two goals for the visitors scored by Anthony Gordon (51') and Lewis Miley (74'). It was the third draw for Bayer 04 in the current 2025/26 campaign on matchday 6 in the UCL league phase.
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The Werkself will be looking to continue their run in the Champions League against Newcastle United on Wednesday, 10 December (kick-off: 21:00 CET). The two victories without conceding a goal at Benfica (1:0) and Manchester City (2-0) will hopefully be followed by a win at home at the BayArena. Against the English side, who have a player with a Black and Red past in their ranks, the way to victory could be through efficiency in attack and quick transitional play. The latter in particular has recently caused the Magpies problems away from home on the European stage. Fans can also get the stylish matchday sticker for their Sound of Dreams tour pass at the Bayer 04 Fanwelt. The matchday news.
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For the first time ever, Bayer 04 have reached the knockout phase of the UEFA Youth League. At the end of the league phase, the Leverkusen U19s secured a 2-1 home win against Newcastle United on Wednesday, 10 December. Montrell Culbreath scored before half-time and Ferdinand Pohl doubled the lead after the restart in the clash with the English side. The UCL youth competition continues at the beginning of February with the Round of 32, which will be played away from home without a second leg.
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