It was a bitter defeat for Frankfurt coach Niko Kovac the day after it was announced that he will join Bayern Munich next season, as his club slipped to sixth, five points behind Leverkusen who have 51, with four games left.
While Kovac's hopes of guiding his current club to Champions League qualification suffered a significant setback in a 4-1 loss at Bayer Leverkusen on Saturday, Bayern had no such problems as they cruised to a 5-1 hammering of Borussia Monchengladbach.
"It's hard to get to this stage of the competition and that's eight years in a row we've done it", he said.
The new manager, born in Berlin to Croatian parents, is under contract to Frankfurt until 2019 and reports in the German media have suggested his release clause is €2.2m (£1.9m).
Bayern' s latest coaching appointment has caused criticism from Frankfurt sports director Fredi Bobic who accused Munich of not acting entirely professionally.
Frankfurt's head coach Niko Kovac.
Several high-profile coaches, including Tottenham boss Mauricio Pochettino, were linked with the Bayern job after Heynckes reportedly rejected the offer of a contract extension.
"Very annoying, unprofessional and lacking in respect", Bobic said of Kovac's switch being made public. That's why this point in time is not a very fortunate one for us.
Kovac is described as a team player, addressing the need to get along with the club's leaders.
"It was a surprise for us in this phase", Bobic said. However, the performance at the BayArena did not back up Kovac's words as Frankfurt's Champions League hopes suffered a heavy blow. "In this phase which is extremely important for Eintracht Frankfurt".
Kovac was appointed at Eintracht in March 2016 and helped the club survive a relegation play-off that season before guiding them to a respectable 11th-place finish in 2017.
Kovac is a reactive coach who has started with no fewer than seven different formations in his 30 Bundesliga games this term - something that should appeal to Bayern given the sheer breadth and depth of abilities in their squad; but the Berlin-born former Croatia global still has certain predilections. Bayern's loss is Hoffenheim's gain, however, as the young coach can continue to build his team to climb the Bundesliga table.
How will Bayern line up with Kovac at the helm?