Soto, on the DL since April 13 with right elbow inflammation, is 4 for 15 with five RBI in five games this season. He was in the lineup for Saturday night's game against Cleveland and will catch Mike Pelfrey as the right-hander makes his Chicago debut. Pelfrey, who signed with the White Sox on April 5, was called up from Triple-A Charlotte earlier in the day.
Tilson, who started the season on the 10-day disabled list, is out because of stress reaction in his right foot. He suffered a season-ending hamstring injury last August in his major league debut.