Former Colts, Ravens DT Tony Siragusa dies at 55
"I'm heartbroken, as is all of Colts Nation," Irsay tweeted.
A cause of death hasn't been revealed.
"This is a tough one. I love 'Goose' like a brother," Ravens legend Ray Lewis said in a statement, according to Mike Garafolo of NFL Network. "From the first day we met, I knew that life was different. I knew he was someone who would change my life forever. He was a one-of-a-kind person who made you feel important and special. You can never replace a man like that."
Lewis and Siragusa were teammates in Baltimore for multiple years.
Siragusa, who entered the league as an undrafted free agent in 1990, enjoyed 12 campaigns in the NFL. He played for the Colts from 1990-96, appearing in 96 regular-season games. Siragusa then joined the Ravens, where he made 73 appearances from 1997-2001. Siragusa helped Baltimore win Super Bowl XXXV as a starter for one of the greatest defenses in NFL history.
The Pitt product retired following the 2001 campaign with 564 tackles and 22 sacks on his resume across 169 regular-season games.
"Renee and I are stunned and heartbroken to learn about the sudden passing of Tony Siragusa," Ravens owner Steve Bisciotti said in a statement. "He was a special person and clearly one of the most popular players in Ravens history. Tony's larger-than-life personality made an enormous impact on our organization and throughout the Baltimore community."
Bisciotti added: "This is a tremendously sad day for the Baltimore Ravens."
After his playing career, Siragusa became an in-game analyst for Fox Sports from 2003-15.