Donald detailed what led to his retirement decision.

The former Rams defensive lineman might be the single-most dominant player of the past decade, but selecting him No. 1 wasn’t easy for the team in 2014.

Sports Illustrated host Robin Lundberg shares insights into some of the top stories trending on SI.com, from Aaron Donald retiring from the NFL to Purdue and UConn looking to dominate the Men's NCAA Tournament.

The veteran quarterback just finished his 15th NFL season.

The legendary defensive tackle’s skills vastly benefited his Rams teammates.

Donald is in rare company.