The team has also released safety Louis Delmas, which saves another $6 million in cap space, DetroitLions.com's Tim Twentyman reports.
Burleson, who spent the last four seasons in Detroit and caught 39 passes for 461 yards and a touchdown in nine games in 2013, tweeted his goodbyes to the city and its fans.
The last 4 years in Michigan been incredible! MY TEAM, FANS & the CITY will missed more than you know! Thank You! Love Detroit! #LionBlood— Nathaniel E Burleson (@Nate13Burleson) February 13, 2014
Burleson signed a five-year, $25 million deal to join the Lions back in 2010 after a four-year stint in Seattle. He began his career with the Vikings in 2003, a former third-round pick out of Nevada.
Off the field, Burelson will probably best be remembered for breaking his arm while trying to drive and save a pizza from sliding off the front passenger seat. Seriously.
Upside: Burleson tweeted in October that the dark cloud of a broken arm has a pepperoni and cheese-filled silver lining: Free pizza for the year, courtesy of DiGiorno. So there's that.