Super Bowl champion Craig Morton’s cause of death revealed after his passing at 83

Super Bowl champion backmost Craig Morton died past week astatine nan property of 83, and connected Monday, his origin of decease was revealed.

Morton died connected May 9 from "acute respiratory nonaccomplishment owed to terrible sepsis owed to urinary tract infection," a Marin County, California, Vital Statistics Office spokesperson told nan California Post.

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Denver Broncos backmost Craig Morton throws a walk during a preseason crippled against nan Dallas Cowboys astatine Mile High Stadium successful Denver, Colo., connected Aug. 12, 1978. (Malcolm Emmons/USA TODAY NETWORK)

Kym Galloway, nan woman of nan erstwhile quarterback, told The Denver Post that Morton was tired of being successful symptom and dealing pinch his back.

"And he conscionable said, ‘I springiness (up). I’m fresh to go. I don’t want to do this anymore. I’ve had an astonishing life. And I’m conscionable tired," Galloway added. "And past … he said, ‘I’ve ne'er said I springiness (up), successful my life."

Morton was captious successful helping nan Broncos scope their first-ever playoff appearance, yet getting them to Super Bowl XII during nan 1977 campaign.

After going 12-2 during nan play and getting wins successful nan playoffs complete nan Pittsburgh Steelers and then-Oakland Raiders, Morton was named nan AFC Offensive Player of nan Year. Morton besides won Sporting News Player of nan Year, nan PFWA Comeback Player of nan Year and nan NFL UPI MVP successful 1977.

"We are saddened to study of nan passing of #BroncosROF backmost Craig Morton, who died connected Saturday astatine nan property of 83," nan Broncos posted connected societal media.

Denver Broncos backmost Craig Morton throws a walk during Super Bowl XII astatine nan Superdome successful New Orleans, La., connected Jan. 15, 1978. The Dallas Cowboys defeated nan Broncos 27-10. (Malcolm Emmons/USA TODAY Sports)

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Morton led nan Broncos to 2 different section titles and 3 playoff berths during his six seasons pinch nan franchise. He vanished his profession successful Denver pinch 11,895 passing yards, which marked nan astir successful franchise history astatine nan time.

Morton besides led nan Broncos pinch walk attempts (1,594) and completions (907). But Morton’s clip pinch nan Broncos was nan second half of his NFL career.

He was drafted by nan Dallas Cowboys successful 1965, nan 5th wide prime retired of Cal. Morton spent nan first 10 seasons of his profession pinch nan Cowboys, wherever he threw for 10,279 yards pinch 80 touchdowns and 73 interceptions. He went 32-14-1 successful his clip pinch Dallas.

Then, during nan 1974 season, Morton was moved to nan New York Giants, a section rival of nan Cowboys. He went 1-6 successful his first 7 starts that twelvemonth and wouldn’t find overmuch occurrence successful New York crossed 3 seasons.

New York Giants backmost Craig Morton throws nan shot nether unit from Pittsburgh Steelers linebacker Andy Russell during a preseason crippled astatine Palmer Stadium successful Princeton, N.J., connected Aug. 30, 1975. (Malcolm Emmons/USA TODAY NETWORK)

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For his career, Morton threw for 27,908 yards pinch 183 touchdowns. He owned an 81-62-1 grounds crossed 207 games.

Fox News’ Scott Thompson contributed to this report.