Union Berlin coach Nenad Bjelica felt powerless during his three-game suspension due to an altercation with Bayern Munich winger Leroy Sané. “It was very difficult to be in the stands. It’s not easy, you can’t react. The last thing you can say to the team is 35 minutes before the game,” Bjelica said in a news conference on Friday. He’s to be back on the sidelines on Saturday as Union host VfL Wolfsburg. During the 1-0 defeat to Bayern on January 24, Bjelica hit Sané in the face as the player was trying to get the ball to take a throw in. The coach was suspended for three games by the German Fo…