The move was announced Friday.
Ball missed the final nine games with the Jaguars last year because of a biceps injury after starting seven. He had one interception and broke up three passes.
He has appeared in 93 games with 44 starts over eight seasons with Dallas (2007-11), Houston (2012) and Jacksonville (2013-14). Ball has six interceptions and 34 pass breakups in his career.
AP NFL websites: http://www.pro32.ap.organd http://www.twitter.com/AP-NFL