Before he was perhaps the hottest N.B.A. star, Giannis Antetokounmpo could be found somewhere in Athens, Greece, trying to sell hats or DVDs so that he and his family could eat dinner that night. His parents, along with Giannis and his three equally enormous brothers, were forced to work for whatever money they could. Even with this burden, however, the Antetokounmpo boys still found time for sports, and, at this, they truly excelled.