With a German Cup final meeting with second-division Kaiserslautern already booked for May 25, Leverkusen’s next task is Thursday’s trip to London to face West Ham in their Europa League quarter-final second leg.

Alonso’s side hold a 2-0 lead after the first leg, meaning anything other than a stunning loss to David Moyes’ men will keep their treble dreams alive.

Sunday’s 5-0 win over Werder Bremen not only broke Bayern Munich’s 11-year stranglehold on the German top-flight title, it flushed Leverkusen’s unwanted ‘Neverkusen’ tag for good.

With two major titles in the club’s history before Sunday, Alonso’s side can more than double their tally by completing the treble.

This season, Alonso has repeatedly said the club needed to be patient, even as the Bundesliga title grew more and more likely.

On Sunday, he pushed talk of Thursday’s West Ham match away, saying: “Now is the moment to celebrate and enjoy it all.”

If overturning a 2-0 deficit seems like a mountain to climb for West Ham, the stats speak even less in their favour.

Alonso’s side have only failed to score once in 43 games this season and have laid on 123 goals at the other end.

West Ham have only kept one clean sheet in their past 18 fixtures — although that did come against German opposition in their 5-0 drubbing of Freiburg in the last-16 second leg at the London Stadium.

‘Still have two more finals’

Alonso’s focus on the treble has been widely adopted by Leverkusen’s squad, with several players reminding fans that the season was not over on Sunday night.

Nigeria striker Victor Boniface, given a first start of 2024 after missing several months with a groin injury, echoed his coach’s statements over the loudspeaker on Sunday.

“We want to say, thank you for your support from the beginning of the season — and we still have two more finals to give you guys.”

Despite his long absence, Boniface is Leverkusen’s top scorer this season, with 18 goals in all competitions.

Leverkusen seem to have all the ingredients not only for more success this season — but to build an era.

Leverkusen CEO Fernando Carro, who took over the club in 2018 pledging to end the wait for a league title, on Thursday ruled out any big sales.

“The team and the coach have shown that they’re greedy, that they want to keep winning and they don’t want to stop,” he said.

“We want to keep going.”

© Agence France-Presse

Photo: Twitter @DeadlineDayLive