"The Greatest" is the most succinct and definitive description of a truly transcendent athlete, one few in any sport could lay claim to without debate.

In every senses of the word, Muhammad Ali was The Greatest - the best heavyweight fighter of all-time and a game-changer for the sport of boxing.

Controversial, bombastic, cocky, political, outrageous, bold, and above all else supremely talented, Ali was like no other fighter that came before him or after.

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Today, the NASCAR community joins with the rest of the world in celebrating the life of The Greatest, who died Friday night at the age of 74. RIP, champ.

Ali-Don't count the days; make the days count.

— Jimmie Johnson (@JimmieJohnson) June 4, 2016

Rest in peace Champ. Muhammad Ali 1942 - 2016. #GreatestoftheGreat pic.twitter.com/P2Pk3PnVoq

— Kurt Busch (@KurtBusch) June 4, 2016

Sad to see the passing of Mohammed Ali..My Thoughts are with the family.. My father was a big fan and I remember watching boxing with my dad

— Greg Biffle (@gbiffle) June 4, 2016

Muhammad Ali was larger than life. One of the greatest personalities in sports ever. RIP champ. Float like an angel now.

— Brian Scott (@bscottracing) June 4, 2016

I would have loved to watch him fight in person. #RIPMuhammadAli

— David Ragan (@DavidRagan) June 4, 2016

Good Morning America, twitterville, race fans, I was sad to hear about "The Greatest of All Time" @MuhammadAli passing last night, RIP Champ

— Darrell Waltrip (@AllWaltrip) June 4, 2016

'I'm so bad I make medicine sick'
Muhammad Ali.
Loved growing up watching him. #RIPMuhammadAli

— Michael Waltrip (@MW55) June 4, 2016

FOR ME! #MuhammadAli gave "Quotes" that will last a life time. I ran around as a child saying "Fly like a butterfly sting like a bee".

— Kenny Wallace (@Kenny_Wallace) June 4, 2016

It was an honor to not only meet the great Muhammad Ali, but to be awarded at Muhammad Ali celebrity fight night. Float like a butterfly in heaven.

A photo posted by Danica Patrick (@danicapatrick) on

People want to change the world. @MuhammadAli did just that. He transcended boxing and sports. I am forever grateful. #RIPChamp #GOAT

— Dale Earnhardt Jr. (@DaleJr) June 4, 2016

When you saw #Ali you didn't see color you didn't see religion you saw a gentle man who was a strong fighter,a Champion you could believe in

— Chris Myers (@The_ChrisMyers) June 4, 2016