Former Claret Jay Rodriguez came off the substitutes ' bench to help Premier League Southampton knock out his old club .
Kevin Long 's late strike ensured the Southampton were made to fight to the end by the Championship high - flyers .
Former Claret Jay Rodriguez came off the substitutes ' bench to help Premier League Southampton knock out his old club but Kevin Long 's late strike ensured the Saints were made to fight to the end by the Championship high - flyers .