Europa League meeting with Celtic next week. The Rhineland side hosted Mainz at the BayArena in good form with four wins in their last five games, including victory against Ferencvaros in Group D on the same night Real Betis saw off Ange Postecoglou's Hoops.
But the visitors had been flying themselves with Mainz coming off their best Bundesliga start in 10 years. Former Parkhead kid Jeremie Frimpong started once again in the top flight clash and he looks likely to do so in Glasgow having impressed so far this term.
Leverkusen had the ball in the net midway through the first half but Scotland's Euro 2020 tormentor Patrik Schick was foiled by the offside flag. Get all the latest Celtic news sent straight to your Inbox every day by signing up.
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