Bolshoi theatre leading soloist Igor Tsvirko and first soloist Margarita Shrainer attend a lesson in their apartment in Moscow on April 29, 2020 during a strict lockdown in Russia to stop the spread of the COVID-19 infection caused by the novel coronavirus. - In the middle of their bedroom, Bolshoi ballet dancers Margarita Shrainer and Igor Tsvirko have placed a linoleum mat and a barre. Since the start of the lockdown, the couple, both soloists in the legendary troupe, have largely used their own initiative to keep up their dance skills at home. (Photo by Kirill KUDRYAVTSEV / AFP) (Photo by KIRILL KUDRYAVTSEV/AFP via Getty Images)