When the NBA put its players in a Covid-19 bubble in advance of the playoffs this summer, Milwaukee Bucks power forward Giannis Antetokounmpo found himself quarantined in Disney’s plush Gran Destino hotel in Orlando, Fla., with his NBA player brothers Thanasis and Kostas Antetokounmpo. For weeks, this “troika of Greek studs,” as sports publication ClutchPoints termed them, were bored out of their 20-something minds.