Louis Delmas and Cliff Avril were on the practice field Tuesday for the Detroit Lions, who come out of their open date looking like a pretty healthy team. Jahvid Best still can't play but he is eligible to come off the reserve physically unable to perform list next week. Corey Williams, coming off knee surgbery, stood off to the side at the start of practice Tuesday and tight end Brandon Pettigrew wasn't on the field at all during the portion open to reporters. Pettigrew is listed as day to day. The Lions play the Eagles at Philadelphia at 1pm this Sunday.