We caught up with Packer legend Forrest Gregg Friday and asked the legendary Hall of Famer of his memories from a mud-caked day in San Francisco that gave birth to a photo that lives on as one of the most iconic in NFL lore.

Pro Football Hall of Famer Mike Munchak is visiting the NFL Network studios on Wednesday, so it feels like a natural for a Pick Six. Perhaps, the six greatest Hall of Famers turned NFL head coaches. That sounds like a great list, but who is the next guy after the clear runaway, Mike Ditka?

There are more than 80 returning members of the Pro Football Hall of Fame here to take part in this weekend’s Enshrinement Festival. Most are staying at the McKinley Grand Hotel, where NFL Auction has a room set up. By Friday afternoon, 64 Hall of Famers had already passed through the Jackson Room and signed footballs and helmets that will be auctioned off — with proceeds going to the Hall of Fame’s Enshrinees Assistance Program.