Chicago Bears middle linebacker Dick Butkus died Thursday at the age of 80.

The team announced his death on Thursday, saying in a statement that his family confirmed he died in his sleep overnight at his home in Malibu, California.

Butkus was a Hall of Famer whose bone-rattling tackles made him one of the most intimidating players in NFL history. He was the quintessential modern linebacker, a disruptive force who roamed sideline to sideline and left a trail of broken opponents behind. Despite a short career in which he retired at 31, Butkus came to define his position. He later acted in movies, TV shows and commercials.

On Thursday, NFL commissioner Roger Goodell released the following statement:

“Dick Butkus was a fierce and passionate competitor who helped define the linebacker position as one of the NFL’s all-time greats. Dick’s intuition, toughness and athleticism made him the model linebacker whose name will forever be linked to the position and the Chicago Bears.

“We also remember Dick as a long-time advocate for former players, and players at all levels of the game. The Dick Butkus Award and his foundation honored achievement on the field and service to the community among high school, college and NFL linebackers. Dick was a champion of clean sports as his ‘I Play Clean’ campaign helped raise awareness about the dangers of steroid use among high school athletes.

“We send our deepest condolences to the Butkus family, the Bears organization and the many fans and people he impacted throughout his life.”

Mark Heim is a reporter for The Alabama Media Group. Follow him on Twitter @Mark_Heim. He can be heard on “The Opening Kickoff” on WNSP-FM 105.5 FM in Mobile or on the free Sound of Mobile App from 6 to 9 a.m. daily.