Legendary boxer Joe Frazier is hoping he can achieve the biggest knockout of his life: beating liver cancer. The 67-year-old champion, who was diagnosed a month ago, is now under hospice care, according to his agent, Darren Prince.

“We’re still hopeful that he’ll turn the corner for the better,” Prince told ABCNews.com. “He’s in an upbeat mood and has really appreciated the outpouring of support he has received from fans around the world.”

Although Frazier is a former heavyweight champion, he is best known for being the first man to beat Muhammad Ali, which happened during the “Fight of the Century” at Madison Square Garden in 1971.

The two also met again in 1974 and also squared off in the famed ”Thrilla in Manila” fight in 1975.

“Smokin’ Joe,” as he was known, never won another championship after his 1970 heavyweight title.

But Frazier’s team is confident he has at least one more win in him.

“I told him: ‘It’s just another fight,’” Prince said. “He’s been the underdog his whole life. If anyone can do this, he can.”