One NFL legend is literally in for the fight of his life. Floyd Little is known throughout the the Denver Broncos organization, and the football world as a whole, for his contributions to the sport. The 77-year-old received terrible news recently when biopsy results revealed he has cancer, according to his former collegiate teammate Pat Killorin, via Syracuse.com. Killorin set up a GoFundMe page to seek aid for Little's medical expenses as he combats the cancer, and attached a heartfelt plea to those willing to support the Broncos' Hall of Fame running back.

"Floyd was recently diagnosed with a treatable but aggressive form of cancer," Killorin wrote. 

Little rose to football prominence after an illustrious career with Syracuse that saw him land three First-Team All-American honors en route to become the Broncos' sixth-overall pick in the 1967 NFL Draft. He'd continue his dominance at the professional level, garnering awards as the league's rushing leader (1971), rushing touchdowns leader (1973), five All-Pro nods and five Pro Bowl appearances. He's since seen his No. 44 retired by both Syracuse and the Broncos, and has been immortalized both in Canton and the Broncos' Ring of Honor. 

The number was also worn at Syracuse by fellow football great Jim Brown, along with another in Ernie Davis, and while Brown is dubbed as arguably the best running back to ever play the game -- Killorin wants it known Little was neck-and-neck with him in his football prime.

"[Jim] Brown is the greatest back ever, but Floyd Little is right next to him, as far as I'm concerned," Killorin said.

No stranger to a fight, Little is now up against the biggest one he's ever faced. 

"No doubt it will be the toughest fight of his life."