Thomas (hamstring) has been ruled out for Saturday's game against the Heat, Ira Winderman of the South Florida Sun Sentinel reports.
Thomas has been participating in non-contact drills, though he will be out until further notice due to the left hamstring strain, per Erik Slater of ClutchPoints.com. The club will likely ramp the 23-year-old back up to playing form slowly since he has played in just two games since Nov. 25.