A tight start as this heat finally gets under way. But it's Luminosa Bogliolo who gets perhaps a step ahead in the opening 50m.

The Italian manages to pull away with Jamaica's Yanique Thompson in the second half of the race, they finish in first and second.

Belgium's Anne Zagre and Australia's Brianna Beahan also through.

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

She could have literally sat in the blocks and waited for everyone to start and still got through.

Right, well this is wide open now.

She's devastated as she walks off. The Olympic champion is disqualified and is in tears.

Oooooh a false start in the second heat. Who was it?

Oh wow! It's Brianna McNeal. She's not happy about that decision.

In this second heat, the USA's reigning Olympic champion Brianna McNeal is the favourite.

She's got a season's best of 12.61 but that's some distance off her PB.

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

It was a good run by Cindy in the circumstances. For her to keep a cool head is a good sign that she is back racing.

Ali wins the first heat easily, crossing the line in 12.59.

Jamaica's Megan Tapper is second, GB's Ofili third in 12.97.

Venezuela's Genesis Romero rounds off the four automatically through to the semis.

Ofili has got off to a great start but American world number five Nia Ali looks so impressive.

Andrew Cotter
BBC Sport commentator in Doha

Cindy Ofili was a mid 12 second runner at her best but she is not at that form yet. This might be a struggle for her.

It is a long and hard road back from the kind of injury (ruptured Achilles) she had.

The first four in each automatically qualify for the semi-finals, with the next four fastest once all the heats have been completed also progressing.

So first up on the track today is the women's 100m hurdles heats.

British champion Cindy Ofili is the sole representative wearing the Union Jack in this event, she goes in heat one.

This events looks set to be a showdown between the world record holder Kendra Harrison (heat four) and 2019’s undisputed world number one, Jamaica’s Danielle Williams (heat three).

Image source, PA Media

Eight days down. Two to go. The 2019 World Championships are almost at an end.

But there's still plenty of bling to be awarded before then. Strap in - we've got a bumper night ahead of us.

Adam Gemili's ready. Are you?

Image source, Getty Images

Dina Asher-Smith's suitcase will already be considerably heavier than it was when she flew to Qatar.

Two medals will need to be checked in on her return flight. Can she make it three in tonight's relay?

Image source, BBC Sport

Welcome to day nine of the World Athletics Championships.

We will be with you from 15:15 BST. In the meantime, sit back, relax, and enjoy the build-up live on BBC One and at the top of this page.