
William Karlsson (L) of Sweden competes with Sebastian Aho of Finland during the 2017 IIHF Ice Hockey World Championship semifinal game in Cologne, Germany on May 20, 2017. Sweden won 4-1. (Xinhua/Ulrich Hufnagel)

William Karlsson (L) of Sweden competes with Sebastian Aho of Finland during the 2017 IIHF Ice Hockey World Championship semifinal game in Cologne, Germany on May 20, 2017. Sweden won 4-1. (Xinhua/Ulrich Hufnagel)