Arda Guler makes way for Brahim Diaz.

Jonathan Tah into the referee's book for a challenge on Kylian Mbappe.

A bit of a needless challenge, to be honest.

Harsh perhaps for the quality of the goal but Viktor Gyokeres was very clearly offside.

Still, it might give Arsenal the belief they can come away from here with more than a draw.

Here come the Bayern changes.

Jamal Musiala and Alphonso Davies come on for Serge Gnabry and Konrad Laimer.

Matt Upson
Former Arsenal defender on BBC Radio 5 Live at José Alvalade Stadium

It's a harsh offside.

Let the technology do it all, but it just feels quite harsh to rule out a goal of that quality.

Another huge chance goes away from Real Madrid!

Vinicius Jr shifts the ball through for Kylian Mbappe down the left but he shoots on his favoured right foot and he can't squeeze the ball in at the far post.

Alex Howell
BBC Sport Arsenal reporter at José Alvalade Stadium

That's unlucky for Arsenal.

It's a great finish from Zubimendi before the goal is ruled out for offside.

That may give them a lift going forward.

Yep, Viktor Gyokeres is clearly offside and the VAR check is quick - the goal is ruled out for offside.

It remains goalless.

Image source, Getty Images

Image source, Getty Images

Wow. What a night Manuel Neuer is having.

Jude Bellingham plays through Kylian Mbappe and he fires towards the bottom corner and you felt sure the net would bulge but the big German keeper gets down and makes a fingertip save to turn it round the post.

Brilliant save.

Martin Odegaard is back on his feet and seems OK to continue.

Have to say I'm surprised not to see Alvaro Carreras go off in that round of substitutions.

He has had a really tough night.

Sporting make the first change of the match as midfielder Daniel Bragança comes on for João Simões.

Meanwhile, there's a little concern for Martin Odegaard here as he is sat on the pitch and needing some treatment to his leg.

Steve McManaman
Former Real Madrid winger on TNT Sports

Image source, Getty Images

Listen to the noise for the missed chance.

Where was Vinicius Jr going? Every touch of the ball he was making his angle worse and worse. And he misses by a good yard into the side netting.

Alvaro Arbeloa has seen enough.

On come Jude Bellingham and Eder Militao.

Off go Thiago Pitarch and Dean Huijsen.

Matt Upson
Former Arsenal defender on BBC Radio 5 Live at José Alvalade Stadium

Good play from Calafiori.

It's got the crowd up hasn't it? Really got the crowd up getting behind their team.

Oh my word.

Dayot Upamecano heads back towards his own goal after a long ball up field and it's a big error as Vinicius Jr is there to latch onto it.

Manuel Neuer comes out and makes himself big and it's enough to unsettle Vinicius Jr, whose effort is wide.

The game is opening up a bit now as Leandro Trossard's dangerous cross is pawed away by Rui Silva, before Trincão drags a shot just wide for the hosts.

Image source, Reuters

Matt Upson
Former Arsenal defender on BBC Radio 5 Live at José Alvalade Stadium

That was a great starting position for Raya as Arsenal were in trouble on the counter, a real warning shot.

As much as they are in control with the set plays, Sporting do look to counter early and it's a good job Raya was there near the centre circle.

If Bayern go on to win the Champions League you feel he is very much up there as one of the favourites.

And, you know, if England win the World Cup...