Longtime broadcaster who's been the team's radio play-by-play voice since 2018 broke the news on Twitter Friday morning.
Musburger, 83, didn't discuss his departure or what's next. Raiders never addressed his departure.
Musburger joined the Raiders for their final two seasons in Oakland before 2020. Musburger relocated to Las Vegas in 2017 after leaving ESPN to launch a sports betting media network.
Musburger earned his mark in sports broadcasting at CBS, where he called NFL games and hosted "NFL Today" From 1973-90, he called NBA, college football, and NCAA tournament games.
In 1990, he was dismissed from CBS and joined ABC and ESPN. During the BCS era, he was the face of ESPN's college football coverage.
Musburger has courted controversy throughout his career, most memorably characterising U.S. Olympians John Carlos and Tommie Smith as "a couple of black-skinned storm troopers" Musburger wrote the column for the now-defunct Chicago American before entering television.
He also garnered flak in 2013 for commenting about former Miss Alabama USA Katherine Webb's appearance during the national championship game.