League leaders Bayer Leverkusen’s bid for a debut Bundesliga title is likely to hinge on how well Xabi Alonso’s side account for their Africa Cup of Nations absences.Unbeaten Leverkusen sit four clear of second-placed Bayern, who have a game in hand but need to do without the AFCON-bound Odilon Kossounou, Edmond Tapsoba and Amine Adli.A...