Bayer Leverkusen boss Xabi Alonso was left a disappointed figure after his side came away with just a point in the 1-1 draw with Bayern Munich on Saturday - in a match Alonso's side dominated.
Borussia Dortmund secured a commanding 3-0 victory over Sporting Lisbon in the first leg of their Champions League play-off round clash on Tuesday at the Jose Alvalade Stadium.
Bayern Munich defender Raphael Guerreiro has insisted his side will not underestimate Celtic as they prepare for tonight's UEFA Champions League play-off clash.
Bayer Leverkusen's quest for victory was halted by a resilient Wolfsburg side, resulting in a 0-0 stalemate in the Bundesliga over the weekend.
RB Leipzig managed to secure a vital 2-0 victory over FC St. Pauli in the Bundesliga on Sunday, despite being down to 10 players for the final stretch of the match.
VfB Stuttgart beat FC Augsburg 1-0 at home to reach the semi-finals of the DFB Cup thanks to striker Deniz Undav's winner.