Mainz midfielder Dominik Kohr was fined by the German Football Federation (DFB) for his remarks on referee Sascha Stegemann after the German Cup defeat to Bayern Munich on Wednesday. Kohr will have to pay €10,000 ($10,739) for “unsportsmanlike conduct,” the DFB said on Wednesday. Mainz were defeated 4-0 by Bayern in the second round of the Cup. Players complained that many small decisions were made in favour of the Bavarians. In his post-match interview, Kohr said: “The referee has a Bayern jersey on. That’s just the Bayern bonus,” he said. The DFB justified the fine saying that Kohr questione…