Scott McTominay is essentially playing as an extra centre-half and he's needed to block a low cross. Liverpool are swamping the last third but still yet to fashion anything clear cut.

Liverpool have started the half with utter dominance, the ball hasn't left the United half yet. Mo Salah crosses to the far post but Sadio Mane can only head into the head of a United defender.

Dion Dublin
Former Man Utd striker on BBC Radio 5 Live

Liverpool will want to be as dominant as they were in the first half, possession-wise. More positive play from Manchester United [needed].

They're off.

Phil McNulty
BBC Sport chief football writer at Anfield

Manchester United will be happier with the last 15 minutes of that half than the first half-hour. They at least started to enjoy some time on the ball.

Liverpool had dominant periods of possession but have not carved out a really clear cut chance.

All to play for.

Here come the sides, hopefully they can step it up and cheer Robbo up a touch.

Robbo: Usual over hyped mantra re the 'best league in the world' two supposed table toppers performing as 'bang average' sides unable to create a shot on target of note.

'Two supposed table toppers' = the top two at the start of this round of games

Marcus Rashford has been caught offside four times in this game already - his most in a Premier League game.

If it stays a draw does the pendulum turn sky blue?

Image source, BBC Sport

Tottenham Hotspur

Spurs boss Jose Mourinho, speaking to Match of the Day: "They like to be dominant, to put you in trouble, go through the sides, we managed to keep them far from that. We pressed high, the defensive line up, we were good.

"For me, the perfect personality is 4-0 at half time, score the chances you have and kill the game, but we played very well. We should score more goals in the first half, we were very dominant. A very basic mistake, punished with a goal that brought them to life, but we were then able to realise an incredible action and get a two-goal advantage.

"He (Tanguy Ndombele) is incredible, for me sometimes you can score a great goal isolated from your performance - in this case the goal confirmed his performance, really, really good.

"They concede a very basic goal and when you do that matches can turnaround, imagine this game without the third goal and we have to play under pressure.

"We cannot kill ourselves by making basic mistakes. What happens many times, is you start missing chances, drop back a bit, many clubs do the same, but don't make the defensive mistakes. Sometimes that happens, today it is a basic mistake in a very good performance, collectively and individually."

Sheffield United

Sheffield United boss Chris Wilder, speaking to Match of the Day: "The first and second part of the week was good but not so great this afternoon, off the back of Tuesday you want to take that into the first part of the game but to go a goal behind after four minutes, a set piece, then four minutes before half-time and four minutes after we got back into the game...

"No matter what the level is, you want to get a foothold and get yourself into a good position. Then you want to grow into the part of the game and we didn't. Fabulous finish, a couple are brilliant finishes and that is key, with the players they have got they can find those moments and we can't.

"I keep saying this, but there is stuff we talk about right the way through the season, key moments, lack of quality have really hurt us.

"We gave possession away, we had bodies around the ball and should play through that area better. A set-piece is preventable, second and third goals we give it away in the middle of the park. When you give it away to top Premier League players they either keep it for 25 minutes or the ball ends up in the back of the net.

"We have to be always close to perfect in terms of a performance and when you do make those mistakes you get punished, we did and we got punished."

Dion Dublin
Former Man Utd striker on BBC Radio 5 Live

Even though Liverpool have had the lion's share of possession you have to do something with it and neither side has really created anything. The goalkeepers' kits are very clean and the defences of both sides have been in charge.

A good result for Leicester and the rest of the top six at the moment. Here's some reaction from Bramall Lane via Dion Dublin.

A little tip by the way, if you go into iPlayer on your TV you can watch every episode of A Perfect Planet in 4k, if you've got a TV that can do that.

Sensational.

Image source, Getty Images

Attenborough's latest is on BBC One right now, you know.

Both managers are out on the sideline. Neither man looks too happy.

Fred cuts out a pass from Thiago, Paul Pogba runs over halfway and is fouled. All very scrappy at the moment.

Again, Marcus Rashford is offside, obviously looking to play on the shoulder of Jordan Henderson. As you would. His shot on this occasion was rubbish anyway.

But United only need to get that run right once, Liverpool need to get it right every time.

That's risky business - a ball over the top sends Marcus Rashford away, Alisson is out to clear and Rashford looks miles offside. The flag goes up - but the replay suggests that was marginal. Microscopic.

Image source, Getty Images