The Bundesliga relegation clash between Mainz and Union Berlin has been rearranged for February 7 after Friday’s game was postponed due to snow. The game in Mainz will have an earlier kick-off time of 6:30 pm (1730 GMT), the German Football League (DFL) announced on Monday. The DFL is taking advantage of the fact both sides are already out of the German Cup. That week is allocated for the quarter-finals and the early kick-off is to allow broadcasters to show the Cup game between Saarbrücken and Borussia Mönchengladbach afterwards. It is one of two Union games rearranged because of snow. They p…