Mark Barron back on the field

AUBURN, Ala. -- Alabama safety Mark Barron returned to the field on Auburn's last offensive drive.

He was injured in the second quarter and was replaced by Vinnie Sunseri.

Barron was playing very deep in Alabama's defensive backfield, and his injury unknown.

Last year, Barron tore his pectoral muscle in last year's Iron Bowl.

Alabama leads 27-14 late in the third quarter.