Europa League semi-finalists Eintracht Frankfurt were thrashed 6-1 at top-four rivals Bayer Leverkusen after resting much-coveted Luka Jovic on Sunday.
Eintracht, who travel to Chelsea on Thursday with the tie level at 1-1, left star striker Jovic on the bench at BayArena.
But Leverkusen recorded a ruthless victory to move level on points with fourth-placed Eintracht as the race for Champions League qualification continues with just two games remaining.
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Peter Bosz's hosts were 2-0 up after just 13 minutes, with Kai Havertz's opener followed up by Julian Brandt.