Chelsea Ladies, much like Man City Women in the first semi-final against Lyon, have struggled to create chances in their second leg.

The Blues have a mountain to climb with just over 20 minutes left.

Two-time Women's Champions League winners Wolfsburg don't look like conceding one goal, let alone the three the English side need.

A change for the hosts as well, as left-back Noell Maritz - who is on a yellow card - is replaced by Isabel Kerschowski.

Just 25 minutes remain at the AOK Stadium, and Chelsea's hopes of reaching the final are drifting away.

The Blues need three goals to make it through here.

Can they find some inspiration to spark a comeback?

Chelsea boss Emma Hayes makes her first substitution, bring on Erin Cuthbert for Eniola Aluko.

Fran Kirby has her first effort at goal, and it;s all her own work.

The forward latches on to a through ball, cuts onto her left and tries to bend a shot in.

But Wolfsburg keeper Almuth Schult is behind that one and it is a straighforward save.

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Wolfsburg almost create an opening after putting together a string of passes in Chelsea's final third.

In the end the ball drifts behind for a corner.

Lara Dickenmann then has another effort after cutting back onto her right foot, but it is straight at the Chelsea keeper.

Straight down the other end, Wolfsburg could have a penalty of their own following a late challenge by a Chelsea defender.

As it is, the ball is cut out and knocked behind for a corner.

The opening 11 minutes of the second half have been very lively so far.

Eniola Aluko goes down in the Wolfsburg box and is that a penalty?

The Blues forward gets in front of Lena Goessling, who dives in and doesn't look to get any of the ball.

Czech referee Olga Zadinova waves the appeals away.

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Wolfsburg have been on top since the restart and should be ahead.

A ball down the left flank is picked up by Ewa Pajor and Hedvig Lindahl rushes out of her goal to try and tackle the striker.

The Chelsea keeper gets nowhere near Pajor with her challenge, but the Wolfsburg player can't get her effort on target from a narrow angle.

That is Lindahl's first error of the game, and a let-off for the visitors.

Chelsea keeper Hedvig Lindahl is called into action again to keep out an effort from Ewa Pajor from the resulting corner.

Another crucial save from Hedvig Lindahl after some sloppy Chelsea defending.

Hannah Blundell gives the ball away to Caroline Hansen, who steps past Magdalena Eriksson and charges into the box.

However, Hansen's shot is kept out by the Sweden international and turned behind.

Sue Smith
Former England forward on BBC Sport

Hedvig Lindahl has been bright coming out for things when there's an opportunity for the ball to go through.

She's been brave and that was a top, top save.

Lara Dickenmann has the first effort of the half for the hosts.

The winger cuts inside from the left and Chelsea keeper Hedvig Lindahl has to tip her fierce shot over the bar.

Moments later Ewa Pajor flashes a shot over the bar from 25 yards out.

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Wolfsburg keeper Almuth Schult is almost caught out by Fran Kirby, who was chasing a through ball back to the keeper.

Schult just drops down onto the ball in time.

Pernille Harder puts a teasing cross into the Chelsea box, but there is no Wolfsburg player anywhere near it.

Wolfsburg get the second half started in Germany.

Who will be facing four-time European champions Lyon in the final in Ukraine next month?

If Chelsea want to be there they have a lot of work to do. Emma Hayes' side need to overturn a 3-1 scoreline from the first leg.

As we enjoy a break at half-time in the Wolfsburg-Chelsea game, why not enjoy all the action from today's first Women's Champions League semi-final?

Click the play button below to watch the highlights as holders Lyon took on Manchester City in France.

Remember, after losing the first leg 3-1 at Kingsmeadow Chelsea need to score three times to have a chance of reaching the Women's Champions League final.

The Blues will have to be much more attacking in the second half if they want to book their place at the Valeriy Lobanovskiy Dynamo Stadium in Kiev on 24 May.

And that is half-time at the AOK Stadium, with no added time needed for stoppages.

Chelsea have kept it tight for large periods, though Hedvig Lindahl was forced into a save from Caroline Hansen in the opening 10 minutes to keep the score at 0-0.

The Blues have not threatened Wolfsburg's goal much though.

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Alexandra Popp sends a header wide from Lara Dickenmann's corner.