To prepare salsa, combine the 4 ingredients in a bowl.
To prepare chicken, sprinkle breast halves evenly with Jamaican jerk seasoning. Coat each half with cooking spray. Place on grill rack; grill 4 1/2 minutes on each side or until chicken is done. Cut each breast into 1/2-inch-thick slices. Serve with salsa and a lime wedge; garnish with cilantro sprigs, if desired.