There are 15 minutes to go at Anfield. As it stands, Liverpool are taking top spot in the group with Atletico Madrid and Porto still drawing 0-0.

Lionel Messi has his second shot of the game, forcing a save. But then he gets booked for fouling Mats Rits.

Curtis Jones curls wide after cutting in from the left.

Milan are rocking.

Phil Foden makes his return from injury as he replaces Kevin de Bruyne. And Raheem Sterling is on for Ferran Torres.

Sebastien Haller is only the second player to ever score four goals on his Champions League debut.

He's basically the first because when Marco van Basten did it for AC Milan in 1992 that was just because it was his first game since the European Cup was rebranded.

Image source, Getty Images

Pat Nevin
Former Scotland winger on BBC Radio 5 Live

Jordan Henderson won't have hit many better goals in his career. It looked like a half-volley, it comes out about 20 yards, it wasn't cleared well from the corner.

He caught it and he zipped it into the bottom corner. He's run away and he's holding his ears as if to say: 'What're you saying now? Don't I score enough goals for you?'

That should count double.

Image source, Getty Images

The corner comes to nothing, but Liverpool don't give it up, setting up a shot from range for Thiago that is blocked.

AC Milan concede another corner. Liverpool want that killer blow.

The Liverpool fans scream for Jordan Henderson to shoot, but he keeps the ball moving out wide for an eventual cross that just evades Curtis Jones.

PSG have only had one shot - blocked - in the second half.

It's 13-5 on shots. PSG are hanging on.

Lionel Messi's only shot was when he hit the wodowork in the first half.

Fresh legs in midfield for Liverpool as Thiago and Curtis Jones come on for Naby Keita and Diogo Jota.

Ferran Torres thinks he has scored City's fifth. He runs onto a through ball, goes round the keeper and slots in. But he was offside.

Great block!

Diogo Jota cuts inside one man in the box and fires a low shot that is deflected over by the diving Simon Kjaer. Corner.

If Jack Grealish thinks he's having a good Champions League debut, it's nothing compared to Sebastian Haller.

The ex-West Ham man has just scored his FOURTH goal of the game. Ajax lead Sporting Lisbon 5-1.

Ian Dennis
BBC Radio 5 Live senior football reporter

Sadio Mane comes on, which only strengthens Liverpool's hand because he's in search for his 100th goal for the club.

I'm sure he'll want to get that here on the European stage. That would put him joint-third with Michael Owen, behind Steven Gerrard and Mo Salah, in Liverpool's all-time scorers in European competitions.

Jack Grealish is the first English player to score on his Champions League debut since Marcus Rashford for Manchester United against Basel in September 2017.

Atletico Madrid have sent on Antoine Griezmann to try and make something happen against Porto.

All four sides in Group B currently heading for a point from the first round of games.

The caption on the TV said Phil Foden had replaced Rodri which was very confusing as I'd like to think I can see the difference between Fernandinho and Foden.

Anyway, the caption has changed - we all agree now it was Fernandinho.

Sebastien Haller is only the second Ajax player to ever score a Champions League hat-trick, after Jari Litmanen at Ferencvaros in September 1995.

This is his Champions League debut.