NFL UK managing director Alistair Kirkwood believes there could be a team permanently based in London "before the end of the decade."
A federal judge said the NFL and more than 4,500 former players will settle their concussion-related lawsuits for $765 million.
The NFL Supplemental Draft concluded without any players being selected.
The 2014 NFL Draft has been pushed back to May 8-10.
ESPN's Adam Schefter reports the NFL is on the verge of brokering a deal with the NFLPA that would push the annual NFL draft into May.
An "NFC starter" estimates as many as 10-15 players on every team use human growth hormone.
The NFL will unveil the 2013 regular-season schedule on Thursday night.
The NFL has passed a rule that makes it a penalty for ball carriers to strike defenders with the crown of their helmet in the open field.