UNC's Asim Richards & Corey Gaynor Lead Nation in Key Blocking Statistic Posted Sep 16, 2022 UNC left tackle Asim Richards and center Corey Gaynor have been two of the better offensive linemen in the nation this season. According to Pro Football Focus, Richards (116) and Gaynor (115) have most recorded the pass-blocking snaps without allowing a pressure among all Power Five offensive linemen. Richards could stand to improve as a run-blocker. (Inside Carolina)