Combine olive oil, pickle liquid, sliced pickles and garlic in large shallow dish. Add meat and turn until coated. Cover and marinate overnight, turning meat once. Remove meat to grill or broiler rack reserving marinade. Cook 6 inches from source of heat for about 14 to 17 minutes per side for medium doneness. Brush meat with additional marinade during grilling and sprinkle each side with salt and pepper after grilling. (If cooked in broiler, catch pan juices and pour over meat before serving.) Cut meat diagonally across grain into thin slices. Makes 8 servings.