Bayern Munich will have to do without centre-back Dayot Upamecano for some time. “It’s a fibre injury to the back of his thigh,” said coach Thomas Tuchel after the 1-0 win over Union Berlin in the Bundesliga on Wednesday. Tuchel was unable to say whether Konrad Laimer and Joshua Kimmich would also be sidelined. Kimmich has a shoulder injury and Laimer left the arena with a limp. However, Tuchel said that Laimer was a bigger concern than Kimmich. “I hope it’s not as bad as it could be,” said Laimer, who may have suffered a muscle injury to his calf. Upamecano is out until further notice. “It’s …