When ready to grill, remove chicken from marinade; discard marinade. Place chicken on gas grill over medium heat or on charcoal grill over medium coals. Cook 10 to 12 minutes, turning once, until juice of chicken is clear when center of thickest part is cut (170°F). Sprinkle with pepper. To heat dinner rolls, place rolls in foil on grill during last 6 to 7 minutes of cooking time.