LAKE FOREST, Ill. -- The Chicago Bears hinted at exploring options at right tackle for Sunday's game against the Minnesota Vikings, but a source familiar with the situation said veteran Frank Omiyale won't be among them.

With starter Gabe Carimi sidelined after suffering right kneecap subluxation against the New Orleans Saints on Sept. 18, Omiyale has filled in at right tackle the past three games. The veteran struggled in Monday night's loss to the Detroit Lions, and eventually was benched in favor of Lance Louis.

"You always give players an opportunity," Bears coach Lovie Smith said on Wednesday. "And time in a game is based on what we see in practice. That's why we started Frank. Frank didn't play as well as he needs to; that he'll tell you he needs to. It's about performance, and we're not satisfied with the performance."