Hosts Germany beat Australia 2-1 on Sunday to reach the Davis Cup quarter-finals as group winners. Kevin Krawietz nd Tim Pütz clinched victory for the Germans 6-4, 6-4 against Wimbledon champions Matthew Ebden and Max Purcell, stretching their unbeaten run to 8-0 in the competition. Jan-Lennard Struff had put Germany ahead 6-1, 7-5 against Purcell before Australia levelled from Thanasi Kokkinakis 7-6 (8-6), 6-1, against Oscar Otte to make the doubles rubber decide. Germany won all three ties against France, Belgium and Australia and now meet Canada on November 24 at the finals in Malaga, Spain…