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

It was nice to see Great Britain. There were some great legs run and all the exchanges were safe. Sometimes we worry about the men's exchanges, but they were perfect, and they were nice and clean this morning.

Zharnel Hughes brings great experience to the team. He has been involved in so many relays in the past few years. What is great is they're all great individual runners.

They have ran some great times collectively. To see those changeovers, they were stretched at some points, but it was pretty well-drilled. That is something they have been working on hard as a team.

Image source, Getty Images

After a British one-two in the men's 100m final earlier this week, home hopes will be high for tonight's 4x100m final.

Silver medallist Jeremiah Azu set GB on their way in qualifying this morning and Romell Glave, the newly crowned European champion, ran the anchor leg as GB finished first - 0.53 seconds before the Netherlands quartet crossed the line in second place.

BBC Sport

Image source, PA Media

Great Britain's Jake Wightman, speaking to BBC Sport: "I felt I was in a perfect spot with 150m to go.

"I couldn't push on in that last 100m. Frustrated. I gave it a go, but it wasn't there tonight. There were obviously people feeling better.

"Frustrated because it was a good opportunity in front of a home crowd. I thought I had enough time to get myself in better shape. Disappointing."

Let's see how they get on in the finals.

The men will go first at 21.33 BST, followed by the women at 21.48 BST to end the evening - with GB's Amy Hunt going for her third gold of the Championships.

Here's how the British relay teams got on this morning...

Well, that's a shame.

Still, Great Britain have more medal hopes tonight - the relays are coming up...

Paula Radcliffe
Former women's marathon world record holder on BBC One

The desperate look across from Jake Heyward. He just had nothing left to respond with.

Steve Cram
BBC athletics commentator at Alexander Stadium

Wow. What a finish. No medal for Great Britain when it looked as though we might get one, maybe two medals. Maybe the two Jakes ran the race out of each other...

Image source, Getty Images

Stefan Nillessen steams through on the final straight to take gold. The Dutchman is a shock winner, both in this race and on the whole.

Samuel Philstrom of Sweden takes silver, while Ireland continue their excellent championships with Andrew Coscoran taking bronze.

Jake Heyward finishes fourth, Arlo Ludewick fifth and Jake Wightman sixth. Gutting for the Brits.

But they've been caught!

A British one-two around the final bend!

Paula Radcliffe
Former women's marathon world record holder on BBC One

Image source, PA Media

Unusual for Jake Wightman to get himself boxed. He is starting to make a move to get himself out of that box.

Oohs from the crowd as there's a bit of pushing in the field.

Final lap, and the two Jakes are making moves.

At the halfway mark, Jake Heyward is still sat in second place, while Jake Wightman is starting to make a move through the field.

Paula Radcliffe
Former women's marathon world record holder on BBC One

Jake Heyward was drawn on the inside and he didn't have any choice, but he got away quickly.

Image source, Reuters

Just under four laps of the track... underway.

Jake Heyward is the early pace setter, along with Norway's Narve Nordas.

The men's 1500m finalists are on track.

Jake Wightman, the GB team captain, would be an incredibly popular winner in Birmingham.

Jenny Meadows
Former 800m world championship medallist on BBC One

Jake Wightman didn't put a foot wrong in the heats. Great Britain have two good shots at medals with Wightman and Jake Heyward.

A rich history in this event but no British champion since 1986.

Can one of the Jakes end 40 years of hurt?

• Steve Cram - 1982 & 1986*
• Steve Ovett - 1978
• John Whetton - 1969
• Brian Hewson - 1958
• Roger Banniser - 1954
• Sydney Wooderson - 1938

*Seb Coe, who won silver behind Cram in 1986, won the 800m title in Stuttgart