A former Clemson and Alabama assistant coach, Bill Oliver, has passed away at the age of 85, according to multiple reports Monday.

Oliver coached at Clemson from 1986–89. He was Clemson’s defensive coordinator in 1989 and served as defensive backs coach the other years.

Oliver was part of Clemson’s three straight ACC Championship teams from 1986-88.

In 1989, he was the defensive coordinator for a defense that featured Levon Kirkland, Ashley Sheppard, Chester McGlockton, James Trapp and Ed McDaniel. That unit was a top-10 defense nationally and top-five run defense.

In Oliver’s final game as DC at Clemson in the 1989 Gator Bowl, he helped Clemson shut down Heisman Finalist Major Harris in Clemson’s 27-7 win over West Virginia.

Oliver was the defensive backs coach at Alabama in 1992, when the Crimson Tide won the national title and a young Dabo Swinney was a wide receiver on that team.

Also on that coaching staff was current Clemson Chief of Football Staff Woody McCorvey, and McCorvey also coached with Oliver at Clemson.

Swinney joined the Tide’s coaching staff the following year, and Oliver and Swinney were colleagues on that staff.

Oliver and Swinney worked together as coaches from 1993-95. Swinney was a graduate assistant those years, and Oliver also worked with McCorvey from 1986-89 at Clemson and then at Alabama from 1990-95.