Bayern Munich's win in their Champions League opener against Barcelona on Tuesday evening.Bayern found the net three times midweek, and the third goal, through Robert Lewandowski, was the only one with Coman on the field.The 25-year-old has since discovered a small disturbance in his heartbeat, which was affecting his breathing.Coman has gone under the knife after receiving medical attention on the heart arrhythmia, and Nagelsmann expects him to be out for around two weeks."Kingsley Coman underwent surgery yesterday," Nagelsmann told the press ahead of their Bundesliga clash with VFL Bochum."His heartbeat rhythm had a slight disturbance with a minor added beat.
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