ORCHARD PARK, N.Y. -- For now, the Cyril Richardson experiment appears to be over for the Buffalo Bills.

The rookie fifth-round draft pick, who started the last four games at left guard after Chris Williams was lost for the season with a back injury, ran with the second team at the start of Wednesday's practice.

Kraig Urbik stepped in with the first team at left guard.

Urbik started all 16 games at right guard last season for the Bills and began training camp in that spot. However, several personnel shifts along the offensive line in the preseason resulted in Urbik losing his starting job.

It appears he'll now have another chance.