Leaders Bayern Munich won’t have defender Lucas Hernández and winger Kingsley Coman for their Bundesliga match at Arminia Bielefeld on Sunday. The club said that both players were unable to train on Saturday due to muscular problems and won’t travel to Bielefeld. Defender Bouna Sarr, meanwhile, is once again an option for coach Julian Nagelsmann after overcoming his patella tendon problems, the club said. Bayern are looking to bounce back after being knocked out of the Champions League by Villarreal on Tuesday. With a win at Bielefeld, the Bavarians would maintain their nine-point lead and set…