Coach Jurgen Klinsmann told Sport Bild magazine : "There won't be any Germany players with any other boot than Adidas."
The move once again raised the issue of conflict between players’ individual endorsement deals and team sponsorship.
Adidas is a long-standing sponsor of the German national team and, according to research by TNS Sport, the brand most widely associated with football in Germany.
A secondary issue is the right of players to choose an essential tool of their trade according to what they believe is best for their own performance.
The BBC reports that Arsenal's Jens Lehmann, Aston Villa's Thomas Hitzlsperger and Liverpool's Dietmar Hamann are some of the players based in England affected by the row.
Bild added a union representing professional football players (VdV) had written a letter saying there were "problems with individual contracts with manufacturers of sporting goods other than Adidas".
As well as the three English-based players the letter was sent to Thomas Brdaric, Miroslav Klose, Frank Baumann, Timo Hildebrand, Arne Friedrich and Christian Woerns.
In October, goalkeeper Lehmann was told by the German football association (DFB) he must change his gloves to Adidas or risk losing his chance of playing in the 2006 World Cup, to be staged in Germany.
Klinsmann added: "If any player believes he has to take legal action so that he can play in his own boot (brand), well he can't sue to play for us."
