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 the 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 the California Post.

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

Kym Galloway, the woman of the erstwhile quarterback, told The Denver Post that Morton was bushed of being successful symptom and dealing with his back.

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

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

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

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

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

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Morton led the Broncos to 2 antithetic part titles and 3 playoff berths during his six seasons with the franchise. He finished his vocation successful Denver with 11,895 passing yards, which marked the astir successful franchise past astatine the time.

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

He was drafted by the Dallas Cowboys successful 1965, the 5th wide prime retired of Cal. Morton spent the archetypal 10 seasons of his vocation with the Cowboys, wherever helium threw for 10,279 yards with 80 touchdowns and 73 interceptions. He went 32-14-1 successful his clip with Dallas.

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

New York Giants backmost Craig Morton throws the 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 with 183 touchdowns. He owned an 81-62-1 grounds crossed 207 games.

Fox News’ Scott Thompson contributed to this report.