Coach Thomas Tuchel has the backing of Bayern Munich officials and players despite a latest defeat but the alarm bells are ringing that the club could face a first season in 12 years without silverware. Tuchel and the team can not afford to falter again on Sunday in the Bundesliga at Bochum, after first losing a league topper 3-0 at Bayer Leverkusen on Saturday and then also crashing 1-0 on Wednesday at Italy’s Lazio in a Champions League last 16 first leg game. Bayern played a decent first half in Rome but it all unravelled as Dayot Upamecano saw red for bringing down Gustav Isaksen and Ciro …