Danny Welbeck departs, Olivier Giroud finally gets the nod. With 30 touches, Welbeck saw less of the ball than anyone in his team.

Former England midfielder Danny Murphy
BBC One

"He has made a run across the front post, there was no man there to stop him, but what a brilliant save that is. A superb save from a brilliant header from Gabriel."

Super-sub Gabriel... no. A brilliant run to meet a corner and he heads it with some force at the top corner but Adam Federici dons his Superman costume and palms the ball up and on to the bar. Superb play all round if you overlook the marking.

What a chance. A shot at glory but a shot that dribbles well, well wide from American Danny Williams. The ball rolled across his path 18 yards out with a clear sight of goal but he caught it badly. Head in hands time.

Former England midfielder Danny Murphy
BBC One

"The game is crying out for someone like Theo Walcott. It would be so easy for an Arsenal player to make the pass that he could race on to with his pace."

"HANDBALL. HANDBALL." The shouts go up as Reading attack. Their fans behind the goal are making some noise.

Mathieu Debuchy was the offender on two occasions in their eyes as he blocked crosses from Hal Robson-Kanu. One of them was right on the edge of the area, arguably in it, a tough and close call.

Former England striker Gary Lineker, BBC One
BBC Sport

"The league title is as good as done, but the FA Cup is wide-open. Arsenal are under the cosh."

Chelsea lead Manchester United as we speak and will go 10 points clear if they hold on. You can follow a live text on that one here.

Belete Eshetea: That is why Wojciech Szczesny is our number two goalkeeper!

Kurt Booth: Szczesny looks off vacantly into the distance after that goal... probably at his career evaporating. He should have saved that.

lfcway: Reading deserve that. Game on!

Jay: Who needs a Plan B if you've got Wojciech Szczesny in the opposition goal.

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Arsenal's first change is not Olivier Giroud, it's a problem at the other end as Per Mertesacker limps to the touchline like a sulking child. Head down, he looks angry. Gabriel is the man coming on. Like for like.

Former England winger Chris Waddle
Match of the Day live at Wembley

"It will be interesting to see what Arsenal do now. How long will it be before somebody like Olivier Giroud comes on?"

Former Arsenal goalkeeper Bob Wilson is in the crowd. He was of course in goal when they lost at the semi-final stage to unfashionable Sunderland in 1973. I wonder if he's getting a bit hot under the collar.

Danny Welbeck is offering a selfless run into the left channel and his hold up play brings Mesut Ozil into the fray, he shapes to play another clever pass but it troubles no one and rolls for a goal kick.

Hands up if you saw that coming? Mine is certainly down.

Are Reading going to do a Bradford, Blackburn or Middlesbrough and rumble one of the big boys?

Arsenal settle after the goal, it's slow build-up across the back line though and Reading players just occupy their zones diligently to form a compact unit.

Former England midfielder Danny Murphy
BBC One

"It started with Mathieu Debuchy losing the ball sloppily. Then the throw-in, but it was good play from Pavel Pogrebnyak to Garath McCleary, it took a deflection off Kieran Gibbs but Wojciech Szczesny should have done a lot better. He needed to be stronger."

Former England winger Chris Waddle
Match of the Day live at Wembley

"It's a very well worked goal and Reading have been much better since the restart, but for me Wojciech Szczesny should be saving it. I think it's the deflection that puts him off. The ball comes off Kieran Gibbs and bounces up very awkwardly.

"Reading are on the front foot and are starting to enjoy their football now. They're not letting Arsenal dictate the pace of the game anymore."

Go on Steve Clarke, celebrate. Don't be a misery. Your side have just levelled up an FA Cup semi-final. You can manage more than a fist pump.

It's a goal full of hard work, just like his side have been in large parts. Pavel Pogrebnyak holds off a challenge and for a big man, shows turn of foot to get to the dead ball line and clip a cross across the face of goal where Garath McCleary stretches to volley in. It's crossed the line has it? Yes. Confusion over, he races to celebrate and a line of players chase to wrestle him to ground as one half of Wembley erupts.

Hector passes into midfield, into Williams, on to Robson-Kanu, this is nice stuff from Reading, it flows. Left-wing position for the Wales international, he crosses but that's woeful and clears the crossbar.

Former Arsenal striker Ian Wright
Match of the Day at Wembley

"With Olivier Giroud in the side Arsenal tend to play much quicker up top. Danny Welbeck doesn't maybe have the same strength as Giroud has and as a result they seem to prefer to go wide. Arsenal can still go another 10% or 20% better than they are doing at the moment."

Garath McCleary takes off like a slalom skier down the Reading right, leaving crossing space is he? No. Too many red shirts. But the attack remains, down goes Pavel Pogrebnyak looking for a free-kick on the edge of the area. Nothing doing. Mesut Ozil gets a decision on halfway though, much to the audible frustration of those wearing blue.

Former England winger Chris Waddle
Match of the Day live at Wembley

"Reading are never going to beat Arsenal by trying to play the better football. Steve Clarke's side need to hustle them, break the play up and get the ball forward a bit quicker. When they did get decent possession in the first half they tended to waste it."