maybe you mean the European League.
Xabi has indeed made Leverkusen's performance extraordinary in all competitions. and that is a threat to Munich, which has dominated the Bundesliga for several seasons.
It wasn't easy for Xabi to beat Munich's dominance, but now they are proving that they can do it. they don't rely on luck, they do it because of the tactics and hard work of everyone on the team.
What Xabi Alonso has proven is a quite extraordinary fact because from the current ranking position it is also quite clear that Bayer Leverkusen is indeed capable of performing better and is very impressive this season by winning more matches. However, Bayer Leverkusen still has to be wary of Bayern Munich in the Bundesliga because there is still enough time for their closest rival to take first place. But for the Europa League, I think there will also be more tense competition because there are several teams from England and Italy which could be an obstacle for Bayer Leverkusen in fighting for the trophy.