
For Rudi Völler, managing director sport, the 1.89 metre central striker is a good addition to the current strike force. "After the serious injury to Joel Pohjanpalo, we intensified our search for a classic centre forward. With Isaac Kiese Thelin, we've brought in a striker who's good in the air."
"He's done brilliantly in the Belgian league," said head coach Heiko Herrlich. "Isaac represents an additional option for us up front. He will make our attacking game even more flexible."
Kiese Thelin is looking forward to the new challenge. "Bayer 04 are a big club with an exciting past. Leverkusen are consistently in Europe and they have ambitious targets for the coming season. I want to contribute to achieving those targets."
Thelin will wear the number 11 shirt for the Werkself. "Of course, I know Stefan Kießling. He's a legendary striker," declared Kiese Thelin. "Being the number 11 makes me feel proud. I hope I can produce good performances in the shirt."
The striker, born in Örebro, has won 24 caps and scored two goals for Sweden and he made four brief appearances at this summer's World Cup in Russia in three group matches and the Round of 16 game against Switzerland. In Sweden, Kiese Thelin played for Karslunds, IFK Norrköping and Malmö FF at club level, before moving on to French club Bordeaux in 2015. Then he joined RSC Anderlecht; there he went out on loan to Waasland-Beveren last term where he scored 16 goals in 25 games – the best return in the Belgian Jupiler Pro League. He also found the back of the net three times in the play-offs.


Bayer 04 host Borussia Mönchengladbach at the BayArena on matchday 12 of the 2026/27 Bundesliga season. The schedule for the game remains to be confirmed. The latest information on ticket sales.
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Bayer 04 host Eintracht Frankfurt at the BayArena on matchday 14 of the 2026/27 Bundesliga season. The schedule for the game remains to be confirmed. The latest information on ticket sales.
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Werkself-TV shows the highlights of Bayer 04 Women's 0-1 loss at Bayern Munich in the round of 16 of the women's DFB-Pokal 2026/27
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“As far as mentality and determination are concerned, we have nothing to reproach ourselves for,” Robert Andrich said up after the first home defeat for the Werkself this term. In terms of their play, too, the Black and Reds put in a respectable performance for long stretches of this intense and physical match, outperforming VfB Stuttgart in most areas. It was only in terms of efficiency in front of goal that the Swabians had the edge over the Werkself. Head coach Carles Martínez wants to learn from this so that, in future, they can “win this sort of match too”. The Werkself review.
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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 working 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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