Reds starting pitcher Johnny Cueto was placed on the 15-day disabled list with a lat injury after being scratched from his Wednesday start against the Rockies, according to the Cincinnati Enquirer. Pedro Villarreal was summoned from Triple-A Louisville to start Wednesday in place of Cueto, who is 2-0 with a 1.80 ERA in three starts since coming off the disabled list May 20 because of an oblique injury.