RB Leipzig suffered a 3-1 defeat at home to Bayer 04 Leverkusen, dealing a significant blow to their Bundesliga title aspirations. Moussa Diaby's goal just before halftime gave Leverkusen a crucial advantage, which they extended through goals from Nadiem Amiri and Patrik Schick in the second half. While Leipzig's Kevin Kampl netted a late consolation, the result sees Leverkusen leapfrog their opponents in the standings.