Werder Bremen has beaten off competition from around
The 25-year-old played a key role in Liberec winning the Gambrinus Liga last season and also impressed in the Czechs' run to the quarter-finals at
"We are pleased that we were able to convince Theodor to come here despite a multitude of offers," Werder's general manager
"He is a very talented right-back who has made a good impression at the European Championship."
"Werder are a club with a lot of stability and tradition, they always set their goals very high. I want to follow up a successful season with Liberec by playing well for Bremen."
UEFA president Michel Platini said preparations for Euro 2016 were "progressing well" after a meeting of the organising committee in Lille.