For a fact, Bayer Leverkusen is still the only club in the German Bundesliga that's yet to lose a league game since the start of the season and I'm very optimistic that they have all it takes to continue their current impressive performance till the end of the season but one thing that's very sure if you ask me is that they'll have to hold on to their current run because they have a very strong competitor in Bayern Munich who will definitely fight till the end of the season.
The club's top scorer this season Victor Boniface recently joined national team to play in the CAF African Cup Of Nations but was ruled out because of injury and news have it that he's expected to be out for the next six weeks. Hopefully, Xabi Alonso will manage the team well in his over a month absence
But as you said Victor Boniface has a pretty severe injury and might be out for about 6 weeks or longer. This is what I waited for, but not in the sense that I wanted it to happen to the player and Bayer Leverkusen. It was more like something I knew would happen to at least some of the players. I don't know if this is just a feeling, but it comes across as if these journeys with the national team frequently lead to the clubs suffering from injuries of the players. Maybe it is really just because I am programmed like that by now and I think more players get injured there, but this Boniface incident was in my head before it even happened. This is really bad now for Leverkusen.