At the other end, Jesus Navas forces David de Gea into a low save with his legs.

The chance came after Marcus Rojo gave the ball away in his own half.

Sloppy play from the visitors and lucky not to be behind.

Daley Blind's inswinging corner is punched away by City goalkeeper Joe Hart.

A Manchester United centre-back taking the corners these days.

United haven't had sight of the City goal yet, but the sprightly Marcus Rashford, boots filled with the enthusiasm of youth, earns a corner after a battle with Gael Clichy...

Image source, PA

Robbie Savage
BBC Radio 5 live

"10 minutes in and Chris Smalling is booked. What a stupid decision from an experienced player."

An early booking for Manchester United defender Chris Smalling. Remember what happened when he did that a couple of seasons ago? (Got sent off)

On this occasion, he chases Sergio Aguero deep into the City half. The Argentine is too clever though, showing some nifty footwork to escape the attentions of the England international.

Smalling resorts to tugging his opponent back, for which he is carded.

Image source, Getty Images

Phil McNulty
BBC Sport chief football writer at Etihad Stadium

They think of everything at Etihad Stadium - even key stats are flashed up on hoardings around the arena as the game is in progress to keep everyone informed.

If anyone did not know City were looking for their 50th competitive victory in the Manchester derby they do now. And we assume that is right of course.

Image source, Reuters

Chikeong Lok: By a distance the two best players on the pitch are Aguero and De Gea and the outcome might come down to who comes out on top.

No messing around in the other 16:00 GMT kick-off - Spurs have taken 44 seconds to go 1-0 up against Bournemouth. The scorer? You guessed it, Harry Kane.

Phil Cartwright has full live text commentary of that one.

City break forward with pace and fashion the first opportunity of the game.

Raheem Sterling breaks clear of Matteo Darmian on the left and chips the ball into the box. It's chested well by Jesus Navas on the penalty spot, who spins and shoots, but his effort sails wide.

Joe Hart hasn't had a touch of the ball yet.

Image source, Getty Images

The first talking to of the game goes to City midifielder Fernandinho for a robust tackle on Michael Carrick. No card shown, just a quiet word from the man in black.

Michael Oliver is the referee today, by the way.

United get their foot on the ball for the first time in the game, looking to control the tempo of the game with patient build-up. Boos ring around the stadium as one red shirt picks out another.

Image source, Getty Images

David Silva's corner comes to nothing, but United get an early wake-up call.

Blistering start from Manchester City. They go on the attack straight away and Manchester United full-back Matteo Darmian has to head Jesus Navas's cross away for a corner in the first 20 seconds.

Here we go then, strap yourselves in. City get the 171st Manchester derby under way.

Image source, PA

BBC Radio 5 Live

You can listen to live commentary with former Wales midfielder Robbie Savage at the Etihad.

Or if you fancy your football from White Hart Lane tune into Radio 5 live sports extra for live commentary of Tottenham v Bournemouth.

"We can get through this boys, big start. Bright, bright, bright."

City goalkeeper Joe Hart very vocal in the tunnel.

The teams are entering the cauldron...

Manchester United manager Louis van Gaal: "After going out of the Europa League, it is a big disappointment and you have to communicate with each other. You also have to recover physically and mentally. We are ready again, I hope we can repeat what we did against Arsenal at home.

"We have to close the gap to them and so have to win this game.

"Our game plan is always for a winning side. I hope we keep the spirit used against West Ham and Liverpool but we have to improve in our possession."

It's not just about the big Premier League derbies today. 

There's some serious grass roots action under way in Sheffield with the finals of the FA People's Cup, which you can follow in our special live text commentary here.

Here a taste of the action from the under-16 girls finals between Frampton Rangers and Ole United.

Turn, dribble, shoot...... 

Image source, Reuters

Manchester City manager Manuel Pellegrini: "Every time you have a good achievement, it is good for you. Our focus now on the Premier League and it is a derby game.

"We want to win of course, but it is not the last game of the season. Even if you lose this, there are more games to qualify for the Champions League. It is important to try to be as close to the top of the table as you can."