On January 27, 2020, Christon officially signed with Kirolbet Baskonia of the Liga ACB and the EuroLeague. On November 14, 2017, Christon was named a member of the United States national team for the 2019 FIBA World Cup qualification. Christon led the team to a 2-0 record during the November first-round games, played in both games, averaged 13.5 minutes, 6.5 points, 1.0 rebounds and 2.5 assists per game, shot 44.4 percent from the field, 100 percent (2-2 3pt FGs) percent from 3-point and 100 percent from the foul line (3-3 FTs). Source: RealGM