Chicago fire

Last April, the Philadelphia 76ers and Atlanta Hawks made the first round of the NBA playoffs surprisingly interesting. The Sixers, a 7-seed, took a 2-1 series lead over Detroit, pushing the perennial contenders to six games. And the eighth-seeded Hawks, who had finished the regular season eight games under .500, fought back from a 2-0 series hole to extend the Celtics to seven games.