While most of the Minnesota Vikings held an optional practice at the team's headquarters, Percy Harvin and Adrian Peterson could only watch from the sidelines while they work their way back from injuries. The two friends ran up and down hills for conditioning and worked on balance in a sand pit, challenging each other to recover as quickly as possible and get back to the business of turning this proud franchise around after two straight last-place finishes in the NFC North. Harvin's shoulder injury is considered minor, especially in comparison to the torn knee ligaments Peterson suffered in December. In fact, if Harvin had his way, he would have been on the field on Wednesday.
