Wolfsburg coach Niko Kovac has been sacked following the side’s plummeting form, the Bundesliga club announced on Sunday, with media reports saying ex-Southampton and RB Leipzig boss Ralph Hasenhüttl is set to take over. The Wolves lost 3-1 at home to Augsburg on Saturday, their 11th league game without a win and third defeat in a row. They were unlucky to have Kevin Wimmer harshly sent off after he had given them the lead but then completely fell apart. The Volkswagen-backed club, champions in 2009, have slipped to 14th spot with eight games remaining and are only six points above the relegat…