PLACE meat in slow cooker; top with barbecue sauce and orange juice. Cover with lid.

COOK on LOW for 8 to 10 hours (or on HIGH for 4 to 6 hours). Remove meat from slow cooker; cut into small pieces or shred with fork. Return meat to slow cooker; stir until meat is evenly coated with the barbecue sauce mixture.

SPREAD mayo onto cut sides of rolls. Fill rolls evenly with meat mixture.