MIAMI (AP) – Third-stringer Kyle Orton worked with the scout team Wednesday simulating Colts quarterback Peyton Manning as the Chicago Bears held their first extensive practice this week for Sunday’s Super Bowl.

Orton, the Bears’ starter for most of 2005 who didn’t throw a pass this season, wears the same number as Manning -18. Orton tried to mimic Manning’s mannerisms at the line of scrimmage with a lot of gesturing and moving around.

He did throw two interceptions during drills, one each to Nathan Vasher and Lance Briggs.

The Bears won 10 games with Orton as their starter last season.

“Kyle Orton has done a great job all year with every one we’ve asked him to simulate,” Smith said. “He’s extremely bright and knows his role.”

Smith said the entire roster was healthy and everyone practiced. The Bears will be back on the practice field Thursday.