The boxing world lost a legend Monday night -- "Smokin'" Joe Frazier died after a brief battle with liver cancer. He was 67.
Joe was a fierce fighter in the ring -- best known for his "Thrilla in Manila" bout with Mohamed Ali in 1975.
Boxing greats and celebs have been remembering Smokin' Joe on Twitter since news of his death broke last night.
Scroll down to see some of our favorite celebrity Tweets ... and feel free to share your own memories in the comments below.
Alec Baldwin: RIP Joe Frazier. Great athlete, sportsman, gladiator.
Floyd Mayweather: RIP Smokin Joe. My thoughts and prayers go out to to the Frazier family. We lost an all time great tonight.
Mike Tyson: Today is a sad yet remarkable day as we mourn the death of boxing legend Joe Frazier & honor him by celebrating his amazing accomplishments.
Matt Leinart: I had the great pleasure and honor to meet Joe Frazier. A Great Champion #RIP
Desmond Howard: As a HUGE boxing fan it saddens me that Smokin' Joe Frazier is no longer with us. He and Ali made boxing special when I was a kid.
George Foreman: Good night Joe Frazier. I love you dear friend.
Manny Pacquiao: Joe Frazier was a great champion in boxing and a great ambassador of the sport. My prayers go out to his family.
