The news today that Manny Pacquiao has called time on his fighting career has made headlines all around the world, with a future in politics seemingly lying in store for the Philippines senator. 

The Filipino icon leaves behind one of the greatest sporting legacies the world has ever seen and it's unlikely any other fighter will ever match what Pacquiao accomplished in the ring, again.

It didn't take long for the tributes to the former eight-weight and oldest welterweight world champion in history to start pouring in, with memories of Ricky Hatton, Oscar De La Hoya, the 'Fight of the Century' against Floyd Mayweather, countless wars over the years and triumphs over Miguel Cotto and Juan Manuel Marquez being fondly remembered by fans, pro boxers and pundits alike.

Here's how the boxing world reacted to the 42-year-old hanging it up...

Check out some of the best reactions below:

 Ryan Garcia - former WBC interim lightweight champion 

"I love you Manny Pacquiao thank you for the legendary career and all the memories you inspired me forever."

Ryan Garcia pays tribute to Manny Pacquiao

Dan Rafael - critically acclaimed journalist 

"The legendary Manny Pacquiao officially announces his retirement from boxing. One of the greatest fighters to ever put on gloves. An honor to have covered his career."

Dan Rafael posts touching tribute to Manny Pacquiao

Sergio Mora - former WBC super-welterweight champion

"One day I’ll be telling my grandkids that I fought on the same undercard with the great Manny Pacquiao."

Sergio Mora reacts to Manny Pacquiao's retirement

Rob Tebbutt - managing director at Boxing Social 

"Manny Pacquiao was a world champion from flyweight to super-welterweight. For context: that would be like Sunny Edwards one day moving up and beating Jermell Charlo. A phenomenon. Happy retirement."

How the boxing world reacted to Manny Pacquiao's retirement

Anthony Ogogo - Olympic bronze medallist 

"Happy retirement Manny Pacquiao, genuinely one of the best to ever do it."

Anthony Ogogo reacts to news of Manny Pacquiao's retirement

Carl Frampton - former two-time world champion

"Winning world titles in a a multitude of weight divisions, in a career spanning over 4 decades, I'll call him the greatest of a generation. Happy retirement Champion."

Carl Frampton responds to news of Manny Pacquiao's retirement

Bob Arum - Top Rank Boxing promoter

"Manny Pacquiao, it was our honor to be your promoter. We wish you nothing but the best in retirement."

Even Bob Arum paid tribute to Manny Pacquiao

Can you get full marks on this ultimate Manny Pacquiao quiz?

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