Oleksandr Usyk was released in Poland after being arrested at Kraków airport on Tuesday evening. The undisputed heavyweight world champion. Ukraine’s Ministry of Internal Affairs and Ministry of Foreign Affairs are investigating the circumstances of the incident, according to Ukrainian President Volodymyr Zelenskyy. President Zelenskyy stated after midnight that he had spoken with Usyk by phone following the champion’s detention. “I was disappointed by this attitude towards our citizen and champion,” the president said. He added that he instructed Ukraine’s Minister of Foreign Affairs Andriy S…