ESPN's Paul Kuharsky reported McCourty's release. McCourty posted a goodbye message to Tennessee fans on Instagram:
He was entering the final season of his contract and was due to make $7 million, per Spotrac.
Per Vinnie Ronca, McCourty finished last season with a coverage grade of 74.1 after posting a career-worst 39.1 mark in 2015.
McCourty was a sixth-round pick by the Titans in 2009. He appeared in 15 games as a rookie and became a full-time starter in 2011.
In 14 games last season, McCourty recorded two interceptions and 12 passes defended, per Pro Football Reference.