Hall played 14 seasons in the National Football League, including 10 with the Washington Redskins.
Hall spent the past nine and a half seasons with Washington, and finished previous year with 11 tackles and two pass defences in five games with two starts.
The NFL's active leading interceptor prior to his announcement with 43 career INTs, Hall returned five of those for touchdowns.
The three-time Pro Bowl selection was traded to the Raiders in March 2008 but lasted just eight games in Oakland before being released.
Hall was the longest-tenured member of the Redskins, and overcame an ACL injury to suit up for five games in 2017. He also tied the NFL's single-game mark with four interceptions in a 2010 game against the Bears. Due to his coverage ability and experience as a cornerback, Hall also played some slot corner behind the likes of Josh Norman, Bashaud Breeland and Kendall Fuller.More news: A positive sign from the Middle East: Iraq's democratic election
Hall redeemed himself with Washington.
In January, Hall said he wasn't sad about the possibility of retiring. He made the third of his three Pro Bowls that season.
Hall, a star cornerback out of Virginia Tech, was the No. 8 overall pick in the 2004 NFL Draft.
Call it a reflection of his career as a whole - he had a knack for making the big play.
"I had a vision of a gold jacket, but the injuries the last couple years have been very hard on me", he said. "It wasn't going to be a role where I felt like I could try to get that coveted 50 [career interceptions]", Hall explained. Who's to say I can't get in there another way.