Bundesliga clubs and the German Football League (DFL) used Saturday’s games to express their solidarity with Ukraine in the wake of the Russian invasion of the country. Leaders Bayern Munich displayed the Ukrainian national colours of blue and yellow on the screens at the Allianz Arena ahead of their match against Bayer Leverkusen. “It is very difficult to focus on football with the horrific images of this war that we see every day,” Bayern chief Oliver Kahn said. There was also a big banner covering the centre circle saying “Stop the war!” and players entered the pitch wearing blue and yellow…