LOS ANGELES >> Sol De Mexico, an 11-piece mariachi ensemble familiar to generations south of the border, held a concert before the Dodgers played the Pittsburgh Pirates on Tuesday. Had Julio Ur#xed;as thrown a no-hitter, he might have insisted la banda warm up the crowd every time he pitches.Ur#xed;as, 20, believes in superstition enough to skip over the third-base line every time he runs to and from the mound.