Victor Boniface was not called up for this international break this is not unconnected to his present state as you know he is not too fit as he failed a medical in AC Milan even though he made a final minute move to weirder Bremen , I don't think that he is too fit for this crucial world cup qualifiers so the coach did the right thing by not calling him up for this games.
Boniface debunked the statement about him being unfit, don't forget that AC Milan didn't give out full information regarding the player failing medical. I don't know to believe, AC Milan medical teams or the player who owns his body and knows whether he is fit or unfit. The club he went for on loan also conducted medicals on the player and he passed, how do we explain this part.
Nobody can really tell what has transpared between Victor Boniface, BayernLeverkusen and AC Milan for that move not to work, AC Milan didn't come up with a full report saying it was the medical result that made them to call off the deal, because if they want to say it was the medical that he faild, what then did Werder Bremen use to ascertain his fitness for them to agree for a loan move. The national call for World cup qualification is entirely a different thing, not all players will be invited in some cases but I don't think it has to do with his medicals.