New Orleans Saints sacks leader Brian Young had arthroscopic surgery for left knee swelling and will miss Sunday's home game against the St. Louis Rams. "We'll see a time frame on his rehab, but it got to a point where we felt like this was the best thing to do," head coach Sean Payton said after practice Thursday. "It will be a week-by-week thing based on what they're telling me from a medical standpoint. Hopefully it's sooner than later that we have him back.