Sacked by Cologne earlier this month, Achim Beierlorzer has now been appointed by Mainz as their new head coach.
Removed from management for almost 12 months, Jose Mourinho is reportedly targeting a return to the Premier League with Tottenham.
Timo Werner scored a hat-trick and had three more assists as RB Leipzig beat Mainz 8-0 and went above Bayern Munich in the Bundesliga table.
Although Mainz took the lead Bayern Munich came back to win easily, not that head coach Niko Kovac was entirely satisfied by a 6-1 victory.
Bayern Munich claimed their first home win of the season as they came from behind to cruise to a 6-1 Bundesliga victory over Mainz.
After coming on in the win over Schalke, Philippe Coutinho and Ivan Perisic were handed their full Bayern Munich debuts against Mainz.
Everton sold Idrissa Gueye to Paris Saint-Germain on Tuesday, and have moved swiftly to bring in Jean-Philippe Gbamin from Mainz.
Bayern Munich welcome Hertha Berlin for the opening fixture of the 2019-20 season, while newcomers Union Berlin tackle RB Leipzig.
David Martin will step up from playing for Millwall in the Championship after West Ham came calling.
Rene Adler says he can no longer trust his body and will bring an end to his playing days after this season.