Minnesota Vikings legend Jeff Siemon has died at the age of 75, the team has announced.

Siemon, a four-time Pro Bowl middle linebacker who spent over a decade in Minnesota, passed away Saturday. A cause of death has not yet been revealed.

The former No. 10 draft pick recorded the third most tackles in Vikings history (1,375) over the course of his 11 seasons with the team and was named one of the 50 Greatest Vikings as part of Minnesota’s 50 season celebration in 2010.

‘His work ethic was absolutely tremendous,’ former teammate Ahmad Rashad said upon hearing the news. ‘And above it all, he is one of the nicest guys you would ever want to meet.’

More to follow.