INDIANAPOLIS — Jim Irsay started his football career as a ball boy. He finished it as a team owner.

Along the way, the NFL’s music man created his own, unique brand.

Irsay worked his way up through the organization, learning how to run a football team, restoring the Colts’ once-proud tradition to glory and created what some have dubbed the greatest guitar collection on Earth — all while battling health issues and addictions to alcohol and painkillers.

On Wednesday, Irsay’s remarkable journey ended at age 65. Pete Ward, Irsay’s longtime right-hand man, made the announcement in a statement, saying Irsay died peacefully in his sleep.

“Jim’s dedication and passion for the Indianapolis Colts in addition to his generosity, commitment to the community and, most importantly, his love for his family were unsurpassed,” Ward said. “Our deepest sympathies go to his daughters, Carlie Irsay-Gordon, Casey Foyt, Kalen Jackson and his entire family as we grieve with them.”

After his father moved the Colts from Baltimore to Indianapolis in 1984, Irsay had a profound impact on the franchise.

With the help of Hall of Fame general manager Bill Polian, Hall of Fame coach Tony Dungy and Hall of Fame quarterback Peyton Manning, Irsay turned the Colts from a longtime laughingstock into a perennial title contender, even winning a Super Bowl title.

He then used that success — and Manning’s aura — to help convince city leaders to build a retractable roof dome stadium that opened in 2008 and eventually allowed Indy to host a Super Bowl.

“I am heartbroken to hear about Jim Irsay’s passing,” Manning said on social media. “He was an incredibly generous and passionate owner and I will always be indebted to him for giving me my start in the NFL. His love for the Colts and the city of Indy was unmatched. His impact on the players who played for him will not be forgotten.”

More recently, though, Irsay battled health issues and became far less visible following a fall at his home Dec. 8, 2023.

Police officers from Carmel, Indiana, a northern suburb of Indy, responded to a 911 call from Irsay’s home. According to the police report, the officers found Irsay breathing but unresponsive and with a bluish skin tone.

A month later, Irsay was diagnosed with a respiratory illness.

During his annual training camp news conference last summer, Irsay told reporters he was continuing to rehab from two subsequent surgeries.

“It’s great to see you guys, the fans and to be out here,” he said at the time. “I’m feeling great, you know, just trying to get this left leg stronger, which it will be.”

Irsay also did not speak during the recent NFL draft as he usually did.

But his story is one of a kind.

As a teenager, he tossed footballs with MVP quarterbacks Johnny Unitas and Bert Jones. He relied frequently on the lessons he learned from rubbing elbows with some of the game’s most important owners — Al Davis, Lamar Hunt, Wellington Mara and Art Rooney — as they worked through the 1982 players’ strike and the implementation of a salary cap.

And he presided over the greatest quarter-century of Colts football thanks to Manning and quarterback Andrew Luck.

Irsay handled everything from ticket sales to public relations as he rose through the organization, even watching No. 1 overall pick John Elway force a trade to Denver in 1983.

When he took over as owner following his father’s death in 1997, things were different. The arrival of Manning helped Irsay — and the Colts — create a passionate local following that hadn’t previously existed but still remains strong today.