Great Britain lose 2-0 to the United States in Billie Jean King Cup semi-finals
Katie Boulter loses 3-6 6-4 6-2 to world number seven Jessica Pegula
Sonay Kartal earlier beaten 3-6 6-4 6-3 by Emma Navarro
18-time champions United States will play defending champions Italy in Sunday's final
Great Britain have never won women's team title, finishing runner-up four times
Peter Odgers
BBC Sport commentator
It's a gutsy, gritty, resilient win for Navarro. USA are one win away from the final. Fantastic effort from Kartal, she played well above her world ranking.
Navarro 3-6 6-4 6-3 Kartal
Got it at the second opportunity!
What a brilliant match and a gutsy performance from both players.
But it's Navarro who takes the spoils, coming from a set down to put the first point on the board for the United States.
*Navarro 3-6 6-4 5-3 Kartal
Oh my. A double fault while serving for the match wipes out the first match point.
Nerves?
*Navarro 3-6 6-4 5-3 Kartal
Kartal takes the first point on the Navarro serve after an incredible rally but the American recovers and earns two match points after Kartal's volley drops long.
*Navarro 3-6 6-4 5-3 Kartal
Over to Navarro to serve for the match.
But the way this match has gone so far, anything could happen.
*Navarro 3-6 6-4 5-3 Kartal
Kartal has come out swinging on serve and a superb shot that kisses the line moves her to 40-0 before a brilliant backhand seals the hold to love.
That will give the Brit a boost.
Navarro 3-6 6-4 5-2 Kartal*
There have been a lot of comebacks across the Billie Jean King Cup this week and Kartal would have to produce a pretty special one to prevent Navarro taking this one.
A first point on the board for two games is a good start.
Navarro 3-6 6-4 5-2 Kartal*
More tired shots from Kartal and it feels like the match is just running away from the Brit.
Navarro wins an eighth point in a row to take the hold to love and puts herself one game away from putting a point for the United States on the board.
*Navarro 3-6 6-4 4-2 Kartal
Another error from Kartal and it's a break to love for Navarro.
So much fight on both sides of the net but it feels like Kartal is just starting to waver physically.
Navarro has a two-game cushion again.
Navarro 3-6 6-4 3-2 Kartal*
Another stunning point for the already lengthy highlights reel of this match and Navarro takes the first point on the Kartal serve.
The Brit fires wide on the forehand for 0-30 then dumps into the net to hand the American three break points.
Some tired bodies out there in a very physical match.
Peter Odgers
BBC Sport commentator
This game is rich in drama. It feels like we have a few more twists and turns to come.
Navarro 3-6 6-4 3-2 Kartal*
She's got it!
Just when it looked like the momentum had firmly landed on Navarro's side of the court Kartal hangs in a tough, lengthy game and breaks back with her first opportunity.
What a match this has been.
Image source, Reuters*Navarro 3-6 6-4 3-1 Kartal
Navarro is looking for the lines on Kartal's backhand side but she goes just wide and Kartal brings up a break-back point.
*Navarro 3-6 6-4 3-1 Kartal
Ahhh that was close.
It looks like Kartal is going to get herself a break point as she hangs in a lengthy rally but her forehand drops agonisingly long.
But Navarro also fires long and back to deuce we go.
*Navarro 3-6 6-4 3-1 Kartal
Kartal lets rip on the forehand and it looks like it's going long but it dips just before the baseline. Lovely shot and that takes us to deuce on the Navarro serve.
Melanie South
Former British Fed Cup player on BBC TV
Good court presence from Navarro. She is really sensing this moment and seeing what is happening down the other side of the court.
*Navarro 3-6 6-4 3-1 Kartal
Navarro strikes first in the deciding set as she breaks Kartal.
Momentum has shifted again and it's the American who looks full of confidence.
Image source, ReutersNavarro 3-6 6-4 2-1 Kartal*
Navarro wins the first point on serve but she gets unlucky as her shot clips the net and drops back on her side and that gets prompts a little shift as Kartal wins the next couple of points.
Navarro regroups with a two-handed backhand down the line and Kartal goes long to seal the game for the American.
*Navarro 3-6 6-4 1-1 Kartal
Kartal seals a very welcome hold to love and that will give her some confidence as the small pocket of British fans cheer her on.
Navarro 3-6 6-4 1-0 Kartal*
A big Kartal backhand drops the wrong side of the line and Navarro saves break points to take the hold in the first time in this match.
A 12-minute game to kick off the deciding set.