BARCELONA, Spain (AP) — Two of Spain's most modest stadiums are set to offer scenes of joy and sorrow on Saturday. Atlético Madrid can ensure it clinches its first Spanish league title in seven years with a win at Valladolid, while Lionel Messi and Ronald Koeman could participate in their last game for Barcelona when they visit the already relegated Eibar. Atlético enters the final round of the competition with a two-point lead over defending champion Real Madrid. If Diego Simeone’s side fails to win at Valladolid, Madrid can retain its title by beating Villarreal. Madrid holds the tiebreaker advantage with Atlético in case they finish level on points.