Marvin Harrison, the rookie wide receiver for the Arizona Cardinals, has made significant progress in his recovery from a concussion, as indicated by his absence from a non-contact jersey during practice. This development suggests he may be able to play in the upcoming game against the Chargers. Harrison's early season performance was less than stellar, leading to frustration, but he remains a player to watch as he adjusts to the NFL.

• Marvin Harrison is progressing well in concussion protocol.
• His performance in Week 1 was disappointing, but he has potential moving forward.