"In his early days he would cry because he doesn't like to lose" - or so says his dad, Wellesley Bolt.  BBC Breakfast spoke to the legendary runner's parents about his early years.

Do you think running might be the sport for you? Why not have a look at Get Inspired's guide?

Darren Campbell
Former British sprinter on BBC Radio 5 live

You know Usain Bolt is going to come.

You have to have a focus that takes you outside of this arena, away from Usain Bolt.

If Justin Gatlin runs as if he's in a training session then he wins Olympic gold.

But Bolt just has that extra gear.

Denise Lewis
Olympic heptathlon gold medallist on BBC TV

The king of the gods is Zeus, and Zeus has a lightning bolt in his hand.

So, it really was written.

I just wish that he was immortal.

Steve Cram
BBC athletics commentator on BBC TV

He still looks like he really enjoys this. This is what he does

He gathers titles like daisies in a field.

Our sport has a lot of critics and it's going through dark times but we should not forget that this is what can be done. This is what can be achieved.

He is almost God like.

Tom Fordyce
Chief sports writer in Rio

Three Olympic 100m finals, three Olympic 100m gold medals. Usain Bolt goes where no-one has ever gone before. No-one has ever relished or flourished in these nine point something seconds of intensity like this man.

That is the second-quickest time of the year from Usain Bolt, his best of the season.

Just goes to show how special his 9.58 was. 

Will it ever be beaten?

Yes

Darren Campbell
Former British sprinter on BBC Radio 5 live

DROP IT LIKE IT’S HOT!

His time has been rounded up to 9.81 seconds.

Justin Gatlin takes silver in 9.89, with Andre de Grasse of Canada in third. 

Mike Costello
Radio 5 live athletics correspondent

It is carnival time here in the Rio Olympic stadium, the latest arena to be showered in the Usain Bolt stardust.

A huge smile on the face of Usain Bolt as he wins his seventh Olympic gold. A hat-trick of titles!

Gold in 2008. Gold in 2012. Gold in 2016!

The crowd erupt. What a night to be trackside...

Image source, bbc

A smile plays across the lips of Usain Bolt. Even after nearly a decade, it surprises me how calm he can be...

Here we go!

Is there a bigger 10 seconds in sport than this? Comes round once every four years. Justin Gatlin and Usain Bolt have won every title since 2004.

Can Bolt make it a hat-trick?

Darren Campbell
Former British sprinter on BBC Radio 5 live

If he's anywhere near these guys after 20m, he's just going to run away.

This is his stage, his arena, his crowd.

Six Olympic finals. Six golds. 

Usain Bolt won the 100m, 200m and 4x100m relay in Beijing. And in London too.

He's never been beaten in an Olympic final. And he has the swagger of a man who knows that...

Image source, Getty Images

Your nation has a gold-medal shot in the blue ribband event of the biggest sports event on earth. Are you going to cheer him on? Of course!

But he is a two-time dope cheat. Oh, well, probably not.

Ah, but one of those suspensions was for a drug he’d been taking since childhood for attention deficit disorder and the authorities admitted he did not intend to cheat. Erm, well, I...errr.

Welcome to the moral dilemma that America faces tonight as Justin Gatlin goes in the 100m.

The Guardian's Bryan Armen Graham tackles the issue over here., external

Audible boos for Justin Gatlin as he enters the arena. Tension? RAMPED

Jason Mohammad
BBC Sport in Rio

Here's how the BBC One crew get set in the Rio studio...

Image source, .

Now then, the 100m. We need a world record to keep the flow going right? One-by-one they come out, think NFL or WWF. I'm not keen but that's me.