First it was Giannis Antetokounmpo and the Bucks, unable to call upon what was one of the best defenses in the league. Then came LeBron James and the Lakers, clanging 3-pointers off the rim to provide a steady sound in a mostly empty gym. Milwaukee and Los Angeles lost their playoff openers, the first time both conference No. 1 seeds have been beaten by the No. 8s to start their postseasons since 2003.