- Former Raptors center Christian Koloko received clearance from his doctors to resume playing and has been participating in free agent showcases with other NBA players, according to Blake Murphy of Sportsnet.ca. Koloko sat out all of last season with a blood clot issue, and he’ll have to be approved by the league’s Fitness to Play Panel before he can sign a contract. Murphy states that Toronto waived Koloko because it needed a roster space and he was unable to play, but the organization still believes in his talent.