Is Victor Butler ready for big role?

ARLINGTON, Texas – With Anthony Spencer out with a pectoral strain, Victor Butler will make the second start of his career and his first since his rookie year.

Butler started the Dec. 19, 2009, game at New Orleans when DeMarcus Ware was limited with a neck injury. So far this season, Butler has been credited with two tackles and a pass deflection in a backup role through three games.

With Chicago having Matt Forte playing despite an ankle injury, Butler’s work against the run will be under the microscope, because that’s what Spencer does best.

“Victor did an excellent job against the run last week (against Tampa Bay),” defensive coordinator Rob Ryan said Saturday. “He really focused on that. We had a couple of mistakes in that game the previous week (against Seattle), so he’s got lot of work and stepped up and did a nice job.”