That is the end of Jack Colback's day - Vernon Anita replaces him in midfield. Both sides have one change left to make.

Jack Colback limps off and the game gets back under way.

Lee Cattermole has absolutely crunched Jack Colback in a tackle there seconds into the second half. The ex-Sunderland midfielder looks in pain.

It looks like Colback's ankle was trapped under Cattermole's leg there when he was sliding in.

Newcastle get us under way in the second half.

Newcastle bring on defender Jamaal Lascelles for midfielder Cheick Tiote at half-time. Tiote was definitely going to get sent off so not the worst decision.

This is the most shots Newcastle have had in the first half of a Premier League game since September 2014 v Hull (also 12).

Players are coming back out now.

OneMoreWicket: Fletcher had a chance to get the ball, such a tough decision for the ref. 

Doron Klemer: A neutral's opinion is a shoulder charge but not going for the ball, 50/50. Goalie probably covering, but another 50/50 call on red.

Matt Griffiths: Why no comments about the dissent shown yet again by footballers? The decision may be wrong, but why abuse officials.

Newcastle had 68% of the possession in that half - and 12 shots to Sunderland's three. But the red card (as well as the goal) has really changed the dynamic of this game now.

MOTD2 Extra

Image source, PA

Former Liverpool midfielder Danny Murphy: "He is overly paranoid. Some of it is clever deflection. I actually think Chelsea have had some bad luck but that is normal for a club at times and I would like to see more humility from him. 

"Jose Mourinho has earned the right for one bad season. Of course, you can moan at referees but not every week. Are Chelsea looking to do the same thing by winning a trophy, having a bad spell and getting rid of the manager or do they want stability?

Former Wigan striker Jason Roberts: "Last season we were talking about a dynasty at Chelsea and now 10 games into this season there is talk about getting rid of the manager. But who do you get to replace him?"

Daily Telegraph journalist Jason Burt: "I'm not sure this can go on for much longer. It's reached stage now where a decision has to be made. Chelsea manager Jose Mourinho has tried every single trick in the book. I've never seen him like this, struggling to turn things around. 

"I can't see who he can blame for what has gone wrong. If Chelsea believe they are not competitive anymore, ie. they can't finish in top four, they will make the change."

Daniel Woodley: Spot on from the referee. No need for Coloccini to barge into Fletcher. Last man so red card. Referee should be applauded. 

Jamie Sheehan: It's not the ref's job to keep 11v11. It's the players. Denial of goalscoring opportunity is a red. 

Corin Wright: Fletcher wasn't reaching that. Penalty, yes. Red card, No.

• Newcastle have had 10 red cards since the start of last season - three more than any other side.  
• Adam Johnson is now Sunderland's joint top-scorer in Premier League derbies against Newcastle (4, level with Kevin Phillips).  

Lewis Starks: Stupid by Coloccini but never a red. "Clear goal scoring opportunity"? Nope. And why hasn't McClaren been sent to the stands? 

Serge Tchwenko: Absolute joke of a ref. If that's his definition of a red card offense, we might as well pack it in and stop playing. 

Gareth Gallagher: Softest penalty and red card I ever did see.

So what happened there was Jermain Defoe played a through ball to Steven Fletcher, who ran onto it. Fabricio Coloccini ran across to just shepherd the ball back to keeper Rob Elliot with the Sunderland striker going down. No different to seeing the ball out of play for a goal-kick as so many defenders do so many times.

And now it's an entirely different game.

Theo Bowyer: Not a red. Not a foul. Horrendous call from the ref. 

Charles Kahanji: Not a penalty, not a sending off. Goalkeeper had that covered. 

Thomas Goodchild: Shoulder to shoulder. Someone fire that ref. That is abysmal.

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Jason Roberts
Former West Brom striker on BBC MOTD2 Extra

It's a game of opinions...

It looks like Newcastle manager Steve McClaren told referee Robert Madley "you got it wrong", quite calmly I must say, as they went down the tunnel.

Image source, Getty Images

I cannot believe that. Newcastle have dominated that half entirely but Sunderland lead - and are now up against 10 men.