The shootout was rapid-fire, but still agonizing for both Sweden, which moved to the World Cup quarterfinals, and the United States, which was eliminated.
Line judges made incorrect calls in the first week that changed the trajectory of matches for Andy Murray, Bianca Andreescu and Venus Williams, among others. Is it time to give computers the job?
Major League Baseball trailed other leagues in having its officials explain calls to fans and broadcasters. For umpires accustomed to saying little, there was a learning curve.