
Koch played for several of Bayer 04's youth teams up to U19 level. He went on to make a total of 213 Bundesliga appearances for Fortuna Düsseldorf, 1. FC Kaiserslautern, MSV Duisburg and DSC Arminia Bielefeld. He spent a season in Bundesliga 2 with FC Energie Cottbus.
Koch, who also had spells abroad for Dinamo Zagreb and Rapid Wien and played in the UEFA Champions League with PSV Eindhoven, reached the DFB Cup final with Kaiserslautern in 2003. After retiring, he began a coaching career and was most recently goalkeeping coach at third-tier club FC Viktoria Köln.

From the 2027/28 season, the Women’s Bundesliga will be organised by an independent league association. Following the unanimous decision taken at the DFB Bundestag (national conference) on Friday afternoon, the league’s separation from the DFB is now official.
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Following the Bundesliga clash against RB Leipzig (Sunday, 20 September, 15:30 CEST), some of the Werkself first team players will be heading off for the first international break of the season. Here is an overview of the Bayer 04 players called up for their national teams and all the details of their upcoming matches.
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A special visit to the BayArena: 222 members from volunteer fire brigades in Leverkusen, the Rheinisch-Bergisch district and the Oberbergisch district watched the Werkself’s 2–0 home win over Slovenian champions NK Celje live in the stadium. Bayer 04 had invited them to the 2026/27 Europa League opener as a thank-you for their tremendous dedication. They watched the match together in Block F4.
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The Bayer 04 U19s have extended their winning run with a fifth consecutive victory on Matchday 5 of the DFB Youth League’s preliminary round. Coach Patrick Greveraars’ side secured a 3–2 (2–1) win in their match against second-placed FC Viktoria Köln, with Burak Kir and Nebe Domnic scoring for the hosts in the first half before captain Ben Hawighorst found the net after the break.
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