For those who are almost as old as I am, the Iggles made one of the worst trades in NFL history. Probably somewhere back around 1962.
Sonny had been the back-up to Norm Van Brocklin, who was the QB on the Eagles' 1960 championship team. Van Brocklin retired and, for some inexplicable reason, the Birds traded Jurgenson to the 'Skins for, wait for it, Norm Snead. It's not even debatable who got the better of that deal.
Sonny would have been the perfect replacement for Van Brocklin as both were of the 'mad bomber' variety of QB's.
RIP, Sonny.