Michigan cornerback David Long was a pleasant surprise in 2017, filling the void left by the departures of Jourdan Lewis and Channing Stribling.

Long proved to be a very good cover corner, giving opposing receivers fits. Long didn’t give up many big plays, he didn’t even allow that many catches.

Pro Football Focus shed some light on just how good Long was in 2017, and he ranks the highest among returning players in a key statistic.

David Long fielded the nation's lowest passer rating among returning FBS cornerbacks pic.twitter.com/ICtB26Fexq — PFF College (@PFF_College) May 3, 2018

An 11.9 passer rating when targeted is firmly in the “Revis Island” territory of dominance. Basically, if a quarterback wants to challenge Long... good luck.

Granted, from year to year numbers like these can change drastically, but with Don Brown as Long’s defensive coordinator, expect more of the same from this cornerback in 2018.

Long had 2 interceptions, 6 pass breakups, and 22 total tackles in 2017.