Renowned offensive line coach Harry Hiestand announced his retirement on Sunday, putting an end to his second stint as Notre Dame’s offensive line coach after just one season. Here’s what you need to know:

Hiestand coached the Irish offensive line from 2012-17 under Brian Kelly, capping that five-year run as Notre Dame won its first Joe Moore Award.

He returned to South Bend to help begin the Marcus Freeman era while working with former offensive coordinator Tommy Rees.