(Reuters) -World Athletics on Tuesday joined a growing list of sporting bodies to ban Russian and Belarusian athletes, while tennis’s governing bodies barred players from competing under the name or flag of either country following Russia’s invasion of Ukraine. Since the start of what Russian President Vladimir Putin has called “a special military operation” last week, Russian and Belarusian teams and athletes have found themselves frozen out from international competitions across sports. Belarus has been a key staging area for Russia’s invasion of Ukraine. On Monday, the International Olympic…