Colin Jackson
Two-time world 110m hurdles champion on BBC TV

I've got a big smile. The 60m men's final will not disappoint for sure.

It will be absolutely electric.

If you put any money down, you're a braver person than me.

This is a sensational 60m final.

Dame Jessica Ennis-Hill
Three-time world heptathlon champion on BBC Two

Azu looked so calm and composed. The weight of expectation, all of us expecting him to defend his title - it's a lot.

For him to run a personal best here in the semi-finals is a fantastic way to go through.

Jeremiah Azu follows Jordan Anthony (6.43 seconds) across the line to reach tonight's men's 60m final!

And it's a new personal best for Azu, who clocks 6.45 seconds to move up to second on the British all-time list.

He's now within 0.03 seconds of Dwain Chambers' British record.

Don't go anywhere, that final is coming up at 20:22 GMT.

Here we go then. It's Jeremiah Azu's turn to try and book his place in the final, where he will hope to retain his title.

He will test himself against American Jordan Anthony, who was the fastest man in the world going into these championships, in this final heat.

Image source, Getty Images

Trayvon Bromell of the United States takes semi-final two.

His time of 6.42 seconds is the fastest time in the world this year.

Kishane Thompson is second in 6.47.

Image source, Getty Images

The bigger names are coming up in the second and third heats, with the likes of Jeremiah Azu, Kishane Thompson, Jordan Anthony, Trayvon Bromell and Ackeem Blake in those heats.

An opportunity then for those in this first race...

And it's Jamaican Bryan Levell who takes the win in 6.53 seconds, ahead of Belgian Simon Verherstraeten and Dutchman Taymir Burnet who finish on the exact same time and will both progress.

The grand finale on night one at the World Indoor Championships is the men's 60m.

But who will make the start line?

It's time for the semi-finals, featuring Great Britain's defending champion Jeremiah Azu, who goes in the third and final heat.

The first two qualify automatically from each race, plus the next two fastest times overall.

Jake Wightman
2022 1500m World Champion

What's so simple about our sport is you can watch a race and you know who the podium is going to be. It's very clear. If you've got two different finals you'll have to work it out, you won't know.

Are there going to be tactics in the heats because you want to be with because they might go out harder? Or they might not go out as hard?

It changes the dynamic of racing.

Colin Jackson
Two-time world 110m hurdles champion on BBC TV

Henriette Jaeger was just watching the screens as she was going around - when you're sprinting that's very difficult to do.

With that performance, and knowing what her capabilities are, she's got lots of experience...

I'm going to tip her for the gold medal!

Henriette Jaegar wins the final women's 400m semi-final in relative ease.

Her time of 50.95 seconds is the fastest of the night.

Wadeline Venlogh of Haiti is second, Spain's Paula Sevilla third and Finland's Mette Baas fourth.

Image source, Getty Images

Onto the fourth and final women's 400m semi-final.

Henriette Jaegar of Norway, who took the bronze medal in this event a year ago, is in this one.

She's joined by Wadeline Venlogh of Haiti, Spain's Paula Sevilla and Finland's Mette Baas.

Colin Jackson
Two-time world 110m hurdles champion on BBC TV

[Co-finals] is an interesting concept.

You can always try it at indoors because it's absolutely still, there's nothing to get in your way but your opponents.

If you're trying to think new, where you feel it will be fair because conditions are virtually identical, indoors is the time to try it.

Let's see. It will be interesting to see what the athletes think.

Image source, Getty Images

There's been a significant format change to the indoor 400m.

Only lanes three to six are used to reduce the disadvantage of running in lanes one and two, meaning there's a maximum of four athletes allowed in each race.

That means the final will be split into two, with four in each race and the medals awarded to the three fastest overall times.

Four more athletes head off in heat three, with Lieke Klaver taking victory in 51.23 seconds.

Image source, Getty Images

It's Natalia Bukowiecka's semi-final!

The Polish athlete wins in 51.42 seconds, holding off Canada's Zoe Sherar.

Myrte van der Schoot of the Netherlands is third in front of Portugal's Sofia Lavreshina.

Onto semi-final two.

Canada's Zoe Sherar, Myrte van der Schoot of the Netherlands, Poland's Natalia Bukowiecka and Portugal's Sofia Lavreshina go in this one.

Image source, Getty Images

It's time for the women's 400m semi-finals on the track now.

GB's Yemi Mary John (52.28 seconds) and Louisa Stoney (52.24) did not progress from this morning's heats.

We only have three athletes in the first race, with Slovakia's Emma Zapletalova not making the start line.

Only the winner qualifies automatically from the four semi-finals, and that is Czech athlete Lurdes Gloria Manuel in 50.96 here.

Great Britain's Georgia Hunter Bell cruised into Sunday's final of the women's 1500m, winning the third and final heat this evening.

Team-mate Jemma Reekie wasn't able to join her, finishing fourth in the preceding heat having lead in the early stages.

Jake Wightman
2022 1500m World Champion

Image source, Getty Images

I think our British lads ran as well as they could have done - it was just a tough round to be in.

The policy this year - anyone who could have gone has gone - that has not been the case in other years. It gives people Championship opportunities like this.

It's invaluable to be able to go and race in the heats of a World Championships.

If that gives them the ability to race well, if it comes to Commonwealth Games and they qualify then it's a great learning curve and experience opportunity.

Image source, Getty Images

We have already seen one athlete claim an indoor title in Poland.

Ukraine’s Olympic champion and world record-holder Yaroslava Mahuchikh claimed the first gold medal of the championship during the morning session.

Mahuchikh cleared 2.01m to take gold ahead of joint silver medallists Nicola Olyslagers and Angelina Tomb.