Alfredo Aceves, a 25-year-old right-hander signed out of Mexico for $450,000, will replace Darrell Rasner in the rotation and start Tuesday against the Angels. Rasner, 5-10, hasn't won since July 12 and was available for bullpen work last night. Aceves, who took over for Rasner Thursday night against the Rays when Rasner was lifted in the second inning, has two big league relief appearances on his resume.