Former Tennessee quarterback Tony Robinson was ordered...

Former Tennessee quarterback Tony Robinson was ordered to serve the remainder of his six-year prison sentence on drug charges after a judge said Robinson had shown a complete disregard for authority by continuing to use cocaine and marijuana.

Robinson, 25, admitted he twice tested positive for cocaine while on probation, the reason the state sought in May to revoke his probation.

Robinson also admitted he left the state without contacting his probation officer to play semi-pro football in Virginia, according to Kim Tolleson, his attorney.

Judge Ray Jenkins of the Knox County Criminal Court in Knoxville, Tenn., revoked Robinson’s probation, telling the former player he had disappointed everyone who had tried to help him.