Former Dallas Cowboys wide receiver Roy Williams wants to sign with Chicago, where he would be reunited with Bears offensive coordinator Mike Martz, according to a team source. The Detroit Lions traded Williams in October 2008 to Dallas, which released him Thursday, freeing him to strike a deal with Chicago. In 40 games with the Cowboys, Williams had 94 catches for 1,324 yards and 13 touchdowns. Martz was Williams' head coach in Detroit when in 2006 the receiver had his most productive season (82 catches, 1,310 yards and seven touchdowns), the only one in which he played all 16 games. Since then, Williams hasn't caught more than 64 balls or gained more than 838 yards receiving in a season. Read more: http://espn.go.com/chicago/nfl/story/_/id/6815205/roy-williams-wants-sign-chicago-bears-source-says