After Sunday's victory over the Reds, Soriano confirmed an earlier ESPNChicago.com report that he will have surgery on his left knee on Tuesday. Dr. Stephen Gryzlo, the team's orthopedic surgeon, will perform the procedure, which a team source said will take place at Northwestern Memorial Hospital.
"Dr. Gryzlo told me the rehab will be about six weeks," Soriano said. "Part of that rehab will be to strengthen my quad muscle so that I don't favor that knee when I start to do baseball-related exercises and drills."
Soriano is coming off of his worst year in the major leagues, with 20 home runs, 55 RBIs and a .241 batting average.
"I'm going to stay with the team and rehab the knee," Soriano said earlier in the day. "I'm going to stay with the team trainers and work on getting the knee strong. Then, I'll go to the Dominican Republic after the season ends and do a lot of leg work, [and] be ready for next season."