“I haven’t lost any speed, quite the opposite,” said Goretzka, cited by Flick as the catalyst behind Bayern’s comeback win at Leverkusen last weekend.
“Leon was instrumental. With his physique, he has a huge presence on the pitch,” said Flick.
Frankfurt upset Bayern in the 2018 German Cup final with a 3-1 victory in Berlin, but the Bavarians have already beaten Eintracht home and away in the league this season.
“We still have no intention of taking our foot off the accelerator,” said Goretzka.
A treble also remains possible for Bayern, who are on the verge of the Champions League quarterfinals after a 3-0 win at Chelsea in the last 16, first leg in February. The competition has been on hold since mid-March.