Arjen Robben and Robert Lewandowski scored two goals each as Bayern Munich ran out 5-1 winners against Benfica at Allianz Arena. Bayern Munich qualified for the Champions League knockout stage and relieved the pressure on boss Nico Kovac with an emphatic 5-1 victory over Benfica at Allianz Arena. The German champions are fifth in the Bundesliga after a mixed run of results but two goals each from Arjen Robben and Robert Lewandowski put Bayern on their way to their biggest winning margin of the season, rendering Gedson Fernandes’ strike nothing more than a consolation as the visitors tumbled out of…