1Place chicken in shallow glass dish. Mix grill seasoning and oil; spoon over chicken. Cover; refrigerate 1 hour.
2Meanwhile, in medium bowl, mix all salsa ingredients. Cover; refrigerate to blend flavors.
3Heat gas or charcoal grill. Carefully brush oil on grill rack. Place chicken on grill over medium heat. Cover grill; cook 10 to 12 minutes, turning once, until juice of chicken is clear when center of thickest part is cut (at least 165°F). Serve chicken with salsa.