Isaiah Roby was born on February 3 in 1998.He is an American professional basketball player for the Oklahoma City Thunder of the National Basketball Association.Roby attended Dixon High School in Dixon, Illinois.He left Dixon with the most career rebounds and blocked in school history and the second-most career points. Roby was rated a three-star recruit by ESPN and 247Sports, and a four-star recruit by Rivals. On October 22, 2014, he committed to Nebraska.Roby entered his freshman season for Nebraska in 2016–17 with a pelvic stress reaction suffered in the offseason, delaying his college debut.In 30 games, Roby made four starts and averaged 3.1 points and 2.9 rebounds per game, while recording 25 blocks, the fifth-most by a Nebraska freshman.As a sophomore, Roby averaged 8.7 points and team-highs of 6.3 rebounds and two blocks per game. He also led his team in field goal percentage, shooting 57 percent, and compiled 63 blocks, the most by a Nebraska player since 2001. He led Nebraska to an unexpected run in the 2019 Big Ten Tournament.On March 30, 2019, Roby declared for the 2019 NBA draft without hiring an agent.He was drafted 45th by the Detroit Pistons and traded to the Dallas Mavericks. The Mavericks assigned him to the Texas Legends for the start of the NBA G League season.On January 24, Roby was traded to the Oklahoma City Thunder by the Mavericks in exchange for Justin Patton and cash considerations. He did not appear in a game during his time with the Mavericks. He made his NBA debut with a brief appearance for the Thunder in January 2020. He was then assigned shortly thereafter to the Oklahoma City Blue, returning the main Thunder roster for only a single day before being sent back to the Blue.