Tom Brady officially announced his retirement from American Football earlier this week.

The 44-year-old did some quite incredible things in the NFL over the past two decades.

He won seven Super Bowls and shattered record-after-record in an unparalleled NFL carrer.

After his retirement, there has been some debate as to who is the greatest sportsperson to have ever lived.

And that's a topic that former England and Liverpool striker, Michael Owen, delved into on Friday afternoon.

Taking to Twitter, Owen asked his followers: "I see a debate going round social media today and it’s one I had in the pub last night; who is the greatest sportsman/sportswoman of all time?"

Hundreds of people got involved and you can view some of the answers below...

Owen then gave his own thoughts on the debate and he narrowed it down to six names.

He wrote: "Tiger Woods, Usain Bolt, [Lionel] Messi, [Cristiano] Ronaldo, [Muhammad] Ali, [Roger] Federer all right up there surely. All taken their respective sports to another level."

He then gave his vote to golf legend, Woods.

"For me, it’s Tiger Woods. When he teed it up in his pomp, there was nobody close to him. He changed the face of the sport," he added.

Woods is a worthy pick. He was dominant throughout the 2000s and has overcome so much adversity to rack up 15 major titles during his career. He did so much for the sport and made it so much more popular.

He would undoubtedly have overtaken Jack Nicklaus' record of 18 major titles if it weren't for off-the-field problems and a number of serious injuries.

One man that Owen omitted from his top six was NBA legend, Michael Jordan.

Explaining his decision, Owen said: "Jordan is top 10 maybe. Is there a big enough pool of players that play it? Seems to me that there’s only a couple of nations that play basketball seriously."