German Olympic champion Alexander Zverev has criticized the ban on Russian and Belarusian players from competing at Wimbledon. “The decision shows that the different tennis communities are not standing together,” the 25-year-old said on Friday ahead of the BMW Open in Munich. “We play the whole year on the men’s tour with one rule: Russian tennis players are not allowed to play under the Russian flag. Wimbledon does what it wants,” he added. Zverev, however, supported the decision of the International Tennis Federation (ITF) to exclude Russia and Belarus from team competitions such as the Davi…