Reminder of the teams...published at 19:58 Greenwich Mean Time 15 February 2022
Sporting Lisbon v Man City (20:00 GMT)
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Sporting Lisbon 0-5 Man City - Mahrez, Silva (2), Foden and Sterling put Man City in complete control
PSG 1-0 Real Madrid - Messi penalty saved but Mbappe with opener
Return legs take place 9 March
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Emma Sanders and Gary Rose
Sporting Lisbon v Man City (20:00 GMT)
Speaking of Ronaldo...
Her son is playing in the Premier League tonight against Brighton. Follow that game with Shamoon here.
Sporting Lisbon v Man City (20:00 GMT)
Here come the players. It's another big night for Manchester City. They have got a very strong side out. Let's see if they can get the job done.
Sporting Lisbon v Man City (20:00 GMT)
Cristiano Ronaldo's mum is here in Lisbon to watch the game. She's a huge Sporting Lisbon fan of course.
Sporting Lisbon v Man City (20:00 GMT)
Izzy Christiansen
England and Everton midfielder on BBC Radio 5 Live
When in possession, it is about picking your moment, when you work so hard to get it back what you do when you do win it back will determine how well you do in the game. Sporting will succumb to not having heaps of possession tonight.
The weaknesses for City are the two centre halves, a slight lack of pace. Can Sporting exploit that on the counter attack?
PSG v Real Madrid (20:00 GMT)
Real Madrid
Real Madrid
BBC Sport profiles Brazilian forward Vinicius Junior, who has become one of Real Madrid's most dangerous attacking threats during a breakthrough season in La Liga.
Everyone reading Dan's comment.
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Tonight is gonna be the start of the most boring CL knock-out phase in recent memory. No away goals = no reason to be happier losing 4-3 away than 1-0. Zzzzz.
Dan, London.
Sporting Lisbon v Man City (20:00 GMT)
Manchester City
Those four ex-Benfica players in the Manchester City side tonight are Ederson, Joao Cancelo, Ruben Dias and Bernardo Silva.
Not a bad quartet.
Sporting Lisbon v Man City (20:00 GMT)
Manchester City
150th appearance for Phil Foden tonight. What a player!
Sporting Lisbon v Man City (20:00 GMT)
Manchester City
Man City boss Pep Guardiola, speaking to BT Sport: "Happy to be here. It is normal for the Champions League. Noisy. Otherwise it would be boring. In Portugal, people they are Latin people. They live football.
"John Stones can play there [right side of defence]. He can help with set-pieces. Quality, mentality, experienced player. Alex [Zinchenko] as well. He came back the injury and played against Norwich in the last game. I have doubts. But in the end I decide for that.
“Hopefully he can maintain it [Raheem Sterling's good form]. For many years, not just now and in the game three days ago, Raheem has been so important.”
On having four ex-Benfica players in his side: "They did the meeting before the game!"
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Mamadou: Why are PSG Champions league heavyweights? What have they done?
Ideozu-Frank Sampson: Emma and Gary on a European night duty? Goals..lots of goals, I hope!!!
PSG v Real Madrid (20:00 GMT)
Real Madrid
Real Madrid
Gareth Bale is on the bench for Real Madrid tonight.
He was brought in for Saturday's 0-0 draw at Villarreal in La Liga - his first appearance since August.
But does he have more to offer?
"He is coming to the end of his contract," said Carlo Ancelotti. "Maybe in the past he didn't have much motivation but now he is fine.
"He wants to finish here in the way he deserves to, because Bale has helped this club win so many titles."
Sporting Lisbon v Man City (20:00 GMT)
Manchester City
Manchester City full-back Joao Cancelo has spoken about the "horrific" robbery which "terrorised my family" and left him injured.
Cancelo suffered cuts to the face after attempting to fight off a gang of four intruders at his home in December.
"My family didn't deserve to go through that. That's life, it happens in life. I had to continue.
"I have had a lot of obstacles in my life but I've become a stronger player mentally.
"That's how I want to keep going."
A survey by world players' union Fifpro and national player unions has found that 75% of male players want the World Cup to remain played every four years.
Fifa is proposing to cut the gap between its tournaments to two years as part of a revamped calendar.
The survey covered more than 1,000 players across six continents of more than 70 nationalities.
According to the survey, 77% of players in both Europe and Asia supported keeping the current schedule, dropping to 63% in the Americas and 49% among African players.
Sporting Lisbon v Man City (20:00 GMT)
John Southall
BBC Radio 5 Live in Lisbon
Decent view inside the Jose Alvalade Stadium.
Is this the year for Manchester City to finally win the Champions League?
They’re favourites to win this one. Commentary on Radio 5 Live from 20:00 GMT.
PSG v Real Madrid (20:00 GMT)
When Kylian Mbappe lines up for PSG against Real Madrid he will face the club he will almost certainly join when his contract expires this summer.
While nothing has been confirmed, it would be a major shock if the France striker does not end up in the white shirt he has dreamed of wearing since he was a kid.
The 23-year-old will not say anything for now - at least not until PSG's Champions League last-16 meeting with the Spanish league leaders is over.
By that time, he will hope to have given Real a first-hand view of exactly what they will be getting.
Sporting Lisbon v Man City (20:00 GMT)
Manchester City
Manchester City are without record signing Jack Grealish tonight.
The England international missed the 4-0 win at Norwich on Saturday after a recurrence of the shin problem he suffered at Aston Villa last season.
Pep Guardiola said the injury is not serious.
"He is better but he is not available, along with Cole Palmer and Gabriel [Jesus]," said Guardiola.
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Moshe Moore: If Poch actually does move to United, is it really an upgrade for them, I mean he hasn't proved himself ever when he has had a challenge
Marcus Alves
BBC Sport
Sporting Lisbon fans jokingly refer to it as "the best moment of the week".
That is not when their team take to the pitch, but instead when manager Ruben Amorim speaks.
Given how successful the Portuguese giants have been lately, it just highlights how much Amorim is revered by the green half of Lisbon.
The club's supporters have even started a social media account , externalwhere they count down the days to his news conferences.