ENGLEWOOD, Colo. (AP) — Broncos defensive coordinator Jack Del Rio has signed a two-year contract that will keep him in Denver through 2015.

Del Rio went 3-1 as interim coach when John Fox underwent heart surgery last season.

Fox is entering the final year of his contract, but he and the Broncos hope to reach an extension this offseason following Denver’s runner-up finish to Seattle in the Super Bowl.

Including the 3-1 mark under Del Rio, the Broncos are 37-17 since Fox took over in 2011, including 3-3 in the playoffs.

Del Rio was Denver’s seventh defensive coordinator in seven seasons when he joined the Broncos in 2012 after serving as Jacksonville’s head coach from 2003-11.