Bayern Munich beat Cologne 2-0 at home on Saturday to delay Bayer Leverkusen’s title party for at least another day and leave the second-bottom Billy Goats five points from absolute safety. Raphaël Guerreiro’s effort from distance on 65 minutes and Thomas Müller’s late strike handed Bayern the win, but Xabi Alonso’s Leverkusen will still clinch their first ever Bundesliga title if they win at home to Werder Bremen on Sunday. That will give them an unassailable 16-point lead with only five matchdays left. Third-placed VfB Stuttgart can move back level with Bayern if they beat Eintracht Frankfur…