The Arizona Cardinals have the NFL's oldest group of 22 starters in the NFL. The Cardinals' average age of their starters was 28.41 years old, or 0.77 years older than any other team. The Cardinals feature Carson Palmer (37), linebacker Karlos Dansby (35), wide receiver Larry Fitzgerald (34), defensive lineman Frostee Rucker (33), center A.Q. Shipley (31), tackle Jared Veldheer (30), guard Mike Iupati (30) and safety Tyvon Branch (30).

The Cleveland Browns have the youngest group of starters with an average age of 24.4.

The Baltimore Ravens, Miami Dolphins, Carolina Panthers and Los Angeles Chargers round out the top-5 of the oldest teams in the NFL.

Joining the Browns in the bottom-5 of youngest starting lineups are the New York Giants, Houston Texans, Jacksonville Jaguars and Pittsburgh Steelers.