Affeldt dealt with two fluke, non-baseball injuries the past two seasons.
In late April, he sprained his right knee and went on the disabled list after he reached out to catch his son, Walker, as the 60-pound 4-year-old jumped off the couch to hug his arriving father.
On Sept. 8, 2011, the pitcher sliced his non-throwing hand nearly to the artery while separating frozen hamburgers during an outdoor barbecue with his family on an off day. The paring knife he was using pushed through a hamburger patty and deep into his hand. Affeldt came within a millimeter of an artery and underwent surgery about eight hours after the injury to repair nerve damage in his pinkie.