Jason Grilli was seen by the Pirates’ team doctors as well as Dr. James Andrews. Jason was diagnosed with a flexor strain in his right arm. It was determined that Jason is not a surgical candidate but that he will need a period of rest before beginning a throwing program. Jason will be re-evaluated in the next 10-14 days. Until that time, Jason will remain rest, treatment and rehabilitation only. Jason’s estimated return date will be better clarified after his reevaluation exam but pitchers with this type of injury typically miss between four and eight weeks.