Former FBI Director Robert S. Mueller is investigating into how the NFL handled evidence in the Ray Rice domestic violence case. Just like it's handy to have a roster for a football game, here's a look at some in the NFL who could be interviewed as part of the probe:
NFL commissioner Roger Goodell is in the tightest spot of his eight-year tenure. He will need to prove beyond doubt he was not aware of anyone at the league receiving the tape, and that there was no cover-up by the NFL.
Considered one of the league's most progressive owners, Steve Bisciotti already has outlined how the Ravens handled their investigation — and how they messed up. He may be doing so again to Mueller.
As the NFL's top attorney and lead negotiator, Jeff Pash might be the league's second-most powerful figure.
Another key lawyer in the NFL hierarchy, Adolpho Birch has been an important figure in many recent high-profile league matters, including the drug policy and concussions.
A former star defensive back who then became president of the players' union, Troy Vincent joined the league in 2010 in player engagement. He was promoted to the head of football operations this year after Ray Anderson left.
Promoted to chief security officer in April 2011, Jeffrey Miller, who joined the NFL in 2008 after a 24-year career on the Pennsylvania police force. He collaborates with law enforcement professionals in working to secure NFL fans, players and venues, as well as conducting some in-house investigations.
The executive vice president of human resources, Robert Gulliver joined the NFL in 2010. Among his duties are diversity and employee relations.