Source: Roach visits Raiders

Chicago Bears free-agent linebacker Nick Roach is visiting the Oakland Raiders, according to a source familiar with the situation.

A source said eight teams have expressed interest in Roach, who figures to get a bump from his $1.715 million base salary in 2012.

Roach finished sixth on the Bears with 84 tackles, although he usually came off the field during passing downs in favor of an extra defensive back.