Bayern Munich manager, Thomas Tuchel, has expressed his frustration at losing Kingsley Coman to yet another injury ahead of their Champions League clash against Arsenal on Wednesday. Coman had to be helped off the field as they defeated Koln 2-0 on Saturday. The France winger was replace in the 50th minute by Jamal Musiala. The 27-year-old has suffered an apparent muscle injury and may miss the rest of the campaign. Speaking after the game, Tuchel told Sky: “The big downside to the whole game is the injury to Kingsley Coman. “It makes me very sad because I know how hard he worked and how impor…