Both sides are starting to look very tired. Villa can't keep hold of the ball.

Lucy Ward
Former Leeds striker on TNT Sports

Image source, Getty Images

Douglas Luiz was making sure [it was on target] and it ended up closer to the keeper - it is a terrific save.

STUNNING SAVE!!!

Lucas Chevalier makes amends for his earlier error, palming Leon Bailey's shot straight to Douglas Luiz and somehow popping up to dive to his right and keep out the Villa midfielder's header.

Simon Stone
BBC Sport at the London Stadium

It is not quite sunset in the capital but they have just had the normal pre-match light show for an evening game.

Now they are playing 'I'm Forever Blowing Bubbles'.

The crowd are well up for this.

West Ham need to feed off it.

Image source, BBC Sport

Atalanta have hosted English teams four times in Europe and only lost once...

But that was 5-0 to Liverpool in November 2020 in the Champions League group stages. Diogo Jota scored a hat-trick.

Atalanta's only home win against English opposition was 3-0 against Evertonin September 2017. They drew their other two home matches against English sides.

Ollie Watkins holds the ball up but he's got no one in support.

Both sides seem to be playing for penalties.

Lucy Ward
Former Leeds striker on TNT Sports

The tempo has slowed right down neither team will want to lose it at this stage.

Image source, Getty Images

Atalanta boss Gian Piero Gasperini says this is one of the biggest games in his side's history.

The Bergamo club have only won one trophy in their 116-year existence, the 1963 Coppa Italia.

"We know that it will be one of the most important games in our history, if not the most important," said Gasperini, who has been in charge since 2016.

"But these are things that are said on the eve of the game, then comes the moment when we will have to know how to isolate ourselves.

"We know the difficulty, for us they are still the same team, despite us winning the first leg.

"Tomorrow we start from 0-0, our ability will have to be not thinking about the result of the first leg, that has to be our goal.

"I expect the best Liverpool possible, with a team that will come here to play all its chances. We will have to play a great game to get a result."

Finally a shot in extra time as Leon Bailey drops his shoulder and has a pop from range that's straight at the keeper.

Image source, .

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Villa have the ball now. Again, Emiliano Martinez is getting booed every time he touches it.

Still no shots since we started extra time.

Fiorentina v Viktoria Plzen has also gone to extra time in the Europa Conference League.

The pair drew 0-0 over 180 minutes, but it's only taken the Italian hosts two minutes of extra time to take the lead through Nicolas Gonzalez.

Liverpool

Liverpool manager Jurgen Klopp speaking to TNT Sports: "We didn't do ourself a favour in the first leg. We just need to try and win the football game and get ahead and then we'll see how much time is left. We'll have to be good in all departments because they are a well-drilled unit and they are used to defending a result and that is probably what they'll do today.

"We have to nothing to lose and they pretty much have nothing to win from here. If we get back in the game it will be a bit nervy for them. We have to use it.

"We don't have a real advantage but there are some between the lines and that is what we have to try. We have to play a really good football game. We don't have to score twice in the first 10 minutes, but we should not concede in that time. We need a complete performance. We're here to give it a proper try."

Image source, Getty Images

It's been a measured start to extra time. Lille are the ones dominating possession. But they can't break Villa down.

• This is the fifth time West Ham have trailed by two or more goals going into the second leg of a knockout tie in all European competitions, but the first since the 1999-00 season. They progressed in the first two and were defeated in the most recent two.
• Bayer Leverkusen have progressed from all 13 previous occasions they have won the first leg of a two-legged European knockout tie by two or more goals.
• West Ham have won three of their past four home games against German opposition (L1), already beating SC Freiburg twice in the Europa League this season (2-0 group stage, 5-0 round of 16).
• Bayer Leverkusen have only won one of their 10 away games against English sides in all competitions. However, this win did come in their last visit to the capital against Tottenham in November 2016 (1-0).
• In the first leg, Bayer Leverkusen recorded 33 shots while West Ham had just one shot. Since the Europa League began in 2009, this is the biggest shot difference (32) between two sides in a single match in the competition.
• Bayer Leverkusen's Florian Wirtz (25) and West Ham's James Ward-Prowse (22) are two of the top three players for most chances created in the Europa League this season.

Simon Stone
BBC Sport at the London Stadium

Image source, Getty Images

It goes without saying Xabi Alonso has put together a phenomenal team.

But they clearly have immense fighting spirit.

In the last round against Qarabag, they were two goals down deep in the second half in both legs. Somehow they managed to draw the first game and win the home encounter, with two goals in stoppage time.

Anyone who thinks Leverkusen are ready to switch off after winning the title at the weekend have not done their homework.

Lille made a change in the break by the way. Midfielder Rémy Cabella replaced defender Gabriel Gudmundsson.