Mainz have signed midfielder Hanno Balitsch from Bayer Leverkusen and striker Michael Thurk from Energie Cottbus.
Leverkusen sporting director Michael Reschke said Balitsch had agreed a contract running until 2008.
“We respect Hanno’s decision to go and wish him the best for his stay at Mainz,” Reschke said.
Thurk, was a member of Mainz’s promotion-winning side, who rejoins after a spell with Cottbus.