Bayer Leverkusen Post-Alonso: Ronny Wasmuth's First Season Rebuilding the Champions

Bayer Leverkusen, the 2023-24 Bundesliga champions under Xabi Alonso, enter the 2025-26 season's final stretch in second place — two points behind Bayern Munich and in their first full season under head coach Ronny Wasmuth. Wasmuth, 52, replaced Alonso in June 2025 after Alonso's departure to Real Madrid. The German coach inherited a squad that had just won Leverkusen's first Bundesliga title and faced the specific challenge of managing decline following a championship season.

Wasmuth's tenure has been more successful than most Bundesliga coaches who inherited championship squads. Leverkusen's 66 points through 28 matches represent a modest decline from the 90 points the team accumulated in the 2023-24 championship campaign, but the team has remained in title contention throughout the season.

Xabi Alonso's Departure

Xabi Alonso's June 2025 move to Real Madrid — replacing Carlo Ancelotti — ended one of German football's most dramatic recent title runs. Alonso, who took over Leverkusen in October 2022 after the team's poor start to the 2022-23 season, led the club to the Bundesliga title in his first full season. His 4-2-3-1 tactical approach and integration of Florian Wirtz as a pressing-first attacking midfielder defined the championship team.

The Alonso-Real Madrid transfer included a €12 million compensation payment from Real Madrid to Leverkusen, structured as a nominal transfer fee for a head coach change. The payment reflected the contractual structure Alonso had signed with Leverkusen in 2022, which included release clauses triggered by elite European clubs.

Ronny Wasmuth's Background

Ronny Wasmuth had served as Union Berlin's head coach from 2023 to 2025 before being approached by Leverkusen in May 2025. Wasmuth's Union Berlin team had achieved two consecutive top-six Bundesliga finishes despite the club's smaller budget and training infrastructure. His tactical approach — a flexible 3-4-2-1 with emphasis on defensive transitions — was publicly cited by Leverkusen sporting director Simon Rolfes as the determining factor in his hiring.

Wasmuth's coaching style has been described by former Union Berlin player Christopher Trimmel as "tactically clear and communicatively disciplined." He has emphasized defensive positioning and structured pressing over the more expansive possession football that characterized Alonso's Leverkusen. The tactical shift has produced slightly lower possession statistics but improved defensive records.

Tactical Continuity With Adjustments

Wasmuth's tactical approach has maintained several Alonso-era elements while introducing significant modifications. The 3-4-2-1 formation has been retained as the primary system, but the role of defensive midfielder has changed. Granit Xhaka now operates as a deeper, more defensive-minded anchor, while Florian Wirtz has been given more attacking freedom in transition moments.

Leverkusen's pressing system has been simplified. Where Alonso used multiple pressing triggers depending on opponent tactics, Wasmuth has standardized a two-phase press: aggressive on the ball, zonal once the opponent escapes. The approach has produced more consistent defensive performance but has reduced Leverkusen's average offensive possession statistics compared with the championship season.

Florian Wirtz's Continued Development

Florian Wirtz, now 22, has enjoyed the strongest season of his career under Wasmuth. His 18 Bundesliga goals and 12 assists through March place him among the league's top five attacking players. Wirtz's increased attacking role has fit his skill profile better than Alonso's more structured system required.

The young midfielder's contract extension, signed in February 2026, runs through 2028 and includes release clauses that could allow major European clubs to acquire him in future windows. Real Madrid, Manchester City, and Paris Saint-Germain have all been publicly linked to Wirtz, though none has yet matched his current €95 million market valuation, according to Transfermarkt.

Granit Xhaka's Veteran Leadership

Granit Xhaka, 33, has been central to Wasmuth's defensive organization. The Swiss midfielder's tactical intelligence and leadership have provided continuity during the managerial transition. His contract extension, signed in January 2026, runs through 2028 and confirms his role as the team's defensive anchor through the next two seasons.

Xhaka's 2025-26 statistics — 84 percent pass accuracy, 5.2 ball recoveries per 90 minutes, and 3.1 tackles per 90 — represent his most productive Bundesliga season. His ball-winning ability has allowed Wirtz and the attacking players to press higher with less risk.

Jeremie Frimpong's Return From Injury

Jeremie Frimpong, the 25-year-old Dutch wing-back, suffered an ACL tear in September 2025 that removed him from the first half of the season. His return in February 2026 — though in a reduced capacity initially — has improved Leverkusen's attacking width. Frimpong's combination of speed, dribbling, and crossing has been a distinctive feature of Leverkusen's attack since his 2021 arrival.

Frimpong's contract runs through 2028, but his performance and recovery have positioned him for a potential summer transfer. Premier League clubs Manchester United, Liverpool, and Arsenal have been publicly linked to Frimpong, with his market value estimated at €65 million by Transfermarkt. Leverkusen has not publicly committed to selling him.

The Champions League Run

Leverkusen's Champions League run has been another area of Wasmuth's focus. The team reached the round of 16 in 2024-25 before losing to Bayern Munich in a German-German tie. The 2025-26 campaign has been more successful — Leverkusen reached the quarterfinal, where they will face Barcelona on April 9.

The Barcelona matchup represents Wasmuth's first major test against Europe's elite clubs. Leverkusen's tactical structure should match up reasonably with Barcelona's possession game, though the game will be played without Frimpong (who is still in late-stage return-to-play phase). Wasmuth has publicly committed to an attacking approach rather than defensive counter-attacking tactics.

The Summer Transfer Window

Leverkusen's summer 2026 transfer activity has been a topic of ongoing discussion. The club's Bundesliga title chase and Champions League progress have attracted interest from European elite clubs seeking acquisitions. Potential outgoing transfers include Frimpong, Wirtz (if his release clause is triggered), and Patrik Schick (the Czech striker, now 30).

Sporting director Simon Rolfes has publicly committed to "selective reinforcement" during the summer, emphasizing the team's desire to maintain its competitive core while adding depth. Rolfes's track record — he was responsible for the acquisition of Wirtz, Xhaka, and Schick — has given the fan base confidence in the transfer approach.

Wasmuth's Long-term Commitment

Wasmuth's contract runs through June 2028. His performance during the 2025-26 season, particularly if Leverkusen qualifies for next year's Champions League and reaches the European semifinals, could trigger contract extensions or release clauses that would allow him to join a bigger club. His first season has established him as a capable Bundesliga coach, and his tactical flexibility and player-management skills have been widely praised.

The German football media has begun discussing Wasmuth's potential as a future Bayern Munich or Borussia Dortmund head coach. Such speculation is typical for successful Bundesliga coaches, and Wasmuth has not publicly committed to any specific career trajectory. His current focus remains on completing the 2025-26 season successfully.