Simon Stone
BBC Sport's chief football news reporter at Old Trafford

Manchester United have shown definite signs of improvement in recent weeks as they get to grips with Ruben Amorim's famed 'system'.

Results have not improved, largely because they give cheap goals away - as they did last week - and don't take their chances - as they did last week.

United simply have to improve in both areas of the pitch, otherwise this will be a really difficult night.

Andros Townsend
Former Tottenham midfielder on BBC Radio 5 Live

Image source, PA Media

It's more season-defining for Spurs than Manchester United.

For United, they can use transitional excuses. Whereas the Spurs project is two years old and Ange Postecoglou has said: "I always win something in my second season".

It's more important that Spurs win this competition rather than United.

Who has had the worst season - Manchester United or Tottenham?

Rene Meulensteen
Former Manchester United coach on BBC Radio 5 Live

It is obviously a massive game considering the season Manchester United have had.

Very poor in the Premier League, knocked out of the two other competitions and this is the only one left.

At the end of this tournament there's a big prize, but more than anything it gets you back into the Champions League and that is vital for Ruben Amorim to be able to build Manchester United back to their best.

Simon Stone
BBC Sport's chief football news reporter at Old Trafford

It is hardly a surprise that Manchester United boss Ruben Amorim has stuck with the side that started the first leg for the deciding clash with Lyon at Old Trafford.

United played quite well for long stretches and once Joshua Zirkzee was ruled out due to injury and Amorim had confirmed Andre Onana would start in goal, it was fairly certain it would be the same team.

BBC Radio 5 Live

You can listen to 5 Live commentary from Old Trafford on this page.

Former England goalkeeper Paul Robinson is alongside Conor McNamara for Manchester United-Lyon.

Kelly Cates is presenting build-up right now, with full match commentary from 20:00.

Click the 'Listen live' tab at the top of this page.

Chelsea

Chelsea manager Enzo Maresca has urged fans to trust him and says the team is improving under his leadership.

The Italian, 45, saw his team jeered by some fans while they were losing at home to Ipswich on Sunday in a game where they eventually came back to draw 2-2.

"The message is that with the fans behind us we are a better team," said Maresca. "I completely understand that, as a team, we have to engage our fans.

"That's something that on Sunday we were not able to do, especially for those 20 or 25 minutes. It is also on us to be good enough to engage our fans."

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Tottenham Hotspur

Image source, Getty Images

Ange Postecoglou's position as Spurs boss has come under fire after his side slumped to 15th in the Premier League.

He was as resolute as ever when questioned about his future.

"I don't define my career or me as a person by what people think of me," he said. "I never have and never will. If you don't think I'm a good coach today then you are not going to think I'm a good coach tomorrow.

"Even if we win, mate, one game is not going to make a difference to that. If people think us winning then all of a sudden I'm a better manager than what I am today, or losing somehow makes me a worse manager, that is their burden, not mine."

Manchester United

Manchester United captain Bruno Fernandes on the fans: "They never stop. They have been very big for us this season. They are one of the reasons why it hasn't been worse than we actually are. They have always been by our side and it is time for us to pay back."

Manchester United

They've seen their team plummet to 14th in the Premier League.

Dumped out of the FA Cup by Fulham.

Eliminated from the League Cup by Tottenham.

But this was the scene outside Old Trafford THREE AND A HALF HOURS before kick-off.

United fans turned up early - and in force - to welcome Ruben Amorim and his players before their biggest match of the season.

Image source, Getty Images

Image source, Getty Images

Image source, Getty Images

Talking of Manchester United fans...

Paul Robinson
Former England goalkeeper on BBC Radio 5 Live at Old Trafford

Image source, PA Media

There will be a lot of anxious and expectant Manchester United fans.

Expectant because they have such a fantastic record in the Europa League this season, but nerves because of where they are in the Premier League.

Europe on a Thursday night has been a safe haven for Manchester United.

Just the 10 changes for Rangers, with goalkeeper Liam Kelly the only survivor from the team that started the 2-2 draw at Aberdeen.

John Souttar and Mohamed Diomande, who were suspended for the first leg, return, with Cyriel Dessers and Vaclav Cerny deployed in attack.

Ridvan Yilmaz will play at right-wing back, with Jefte on the opposite side.

Athletic Bilbao XI: Agirrezabala, Vivian, Yeray, Berenguer, Sancet, N Williams, Lekue, De Galarreta, De Marcos, Sannadi, Jaureguizar.

Rangers XI: Kelly, Yilmaz, Tavernier, Souttar, Balogun, Jefte, Raskin, Diomande, Hagi, Cerny, Dessers.

Image source, BBC Sport

Chelsea manager Enzo Maresca makes only two changes from the side that won the first leg 3-0 in Poland.

Nicolas Jackson and Marc Cucurella are back in the starting line-up for the Blues as Malo Gusto and Tyrique George drop to the bench.

Chelsea XI: Jorgensen, Acheampong, Adarabioyo, Badiashile, Cucurella, James, Dewsbury-Hall, Nkunku, Palmer, Sancho; Jackson.

Subs: Sanchez, Bergstrom, Neto, Madueke, Gusto, George, Amougou, Rak-Sakyi, Antwi, Emenalo, Mheuka, Walsh.

Legia Warsaw manager Goncalo Feio makes four two changes from last week's first-leg defeat.

Goalkeeper Vladan Kovacevic, defender Jan Ziolkowski, midfielder Claude Goncalves and forward Tomas Pekhart come in to the side.

Legia Warsaw XI: Kovacevic, Pankov, Ziolkowski, Kapuadi, Vinagre, Oyedele, Elitim, Goncalves, Morishita, Pekhart, Luquinhas.

Subs: Tobiasz, Mendes, Augustyniak, Chodyna, Bichakhchyam, Kun, Mozie, Olewinski, Jedrzejczyk, Szczepaniak.

Eintracht Frankfurt boss Dino Toppmoller names the same XI that left London with a 1-1 draw seven days ago.

Hugo Ekitike, who scored in the first leg, will look to score his fifth goal of this Europa League campaign.

Eintracht Frankfurt XI: Kaua Santos, Kristensen, Kock, Tuta, Theate, Skhiri, Larsson, Bahoya, Gotze, Brown, Ekitike.

Subs: Grahl, Siljevic, Amenda, Chaibi, Wahi, Dahoud, Can Uzun, Chandler, Nkounkou, Batshuayi, Collins, Knauff.

Image source, Opta

Spurs manager Ange Postecoglou is forced into making one change, and it's a major one. Son Heung-min fails to recover from a foot injury, so is replaced on the left of attack by Mathys Tel.

Tottenham XI: Vicario, Porro, Romero, Van de Ven, Udogie, Bergvall, Bentancur, Maddison, Johnson, Solanke, Tel.

Subs: Austin, Whiteman, Danso, Bissouma, Richarlison, Gray, Kulusevski, Spence, Odobert, Sarr, Davies, Moore.

Image source, Opta

Andre Onana is back in goal for Manchester United after being benched at the weekend.

Rasmus Hojlund, Harry Maguire, Casemiro and Patrick Dorgu also come in as Ruben Amorim makes five changes from the side who were thrashed 4-1 by Newcastle.

Altar Bayindir, Victor Lindelof, Christian Eriksen, Harry Amass and Joshua Zirkzee drop out, with Zirkzee being out through injury.

Manchester United XI: Onana, Mazraoui, Maguire, Yoro, Dalot, Ugarte, Casemiro, Dorgu, Garnacho, Hojlund, Fernandes.

Subs: Bayindir, Heaton, Lindelof, Mount, Eriksen, Shaw, Mainoo, Amass, Moorhouse, Kamson, Kukonki.

There are five changes for Lyon from the side who beat Auxerre in Ligue 1 at the weekend, with English defender Ainsley Maitland-Niles coming into the starting line-up.

Ex-Manchester United midfielder Nemanja Matic drops to the bench, though.

Alexandre Lacazette, Sael Kumbedi, Duje Caleta Car and Abner Vinicius are also benched. Clinton Mata, Nicolas Tagliafico, Paul Akouokou and Jordan Veretout come in.

Lyon XI: Perri, Maitland-Niles, Mata, Niakhate, Tagliafico, Tolisso, Akouokou, Veretout, Cherki, Mikautadze, Almada.

Subs: Descamps, Diarra, Lacazette, Fofana, Tessmann, Abner Vinicius, Kumbedi, Omari, Matic, Caleta-Car.

Manchester United

Confirmation that Andre Onana - at fault for both of Lyon's goals in the first leg - starts after being dropped at the weekend. Rasmus Hojlund also returns to the starting XI.

Full team news coming up.