Stephon Castle Sidelined for Spurs' Preseason Matchup Against Miami Heat

San Antonio Spurs rookie Stephon Castle will miss Wednesday's preseason game against the Miami Heat. Castle has been ruled out of the contest due to a knee injury, according to Dan Weiss of FanDuel Sports Network Southwest. This injury will keep him off the court for the upcoming exhibition, impacting his preseason participation and preventing him from facing the Heat.