A video of them breaking out into a dance after the ceremony was posted on Instagram by Summer Sports Ukraine. The spectacular opening ceremony took place in Paris on the night of July 27, with an armada of boats carrying athletes from around the world along the Seine River. It became the largest open-air show in the world, with more than 300,000 people watching from the riverbanks and bridges. Tennis star Elina Svitolina, who won a bronze medal at the previous Games in Tokyo, was one of the flag-bearers for Ukraine at the ceremony. Svitolina was joined by swimmer Mykhailo Romanchuk, a silver …