How many times has Cristiano Ronaldo come to Manchester United's rescue?

He's dug them out of a huge hole yet again. The 37-year-old is still going strong.

Chance!

Pontus Jansson rises highest in the box to glance on a cross. It is heading for the far corner but Ben Foster gets across to snatch it out of the air.

Marcus Rashford comes on for his 300th appearance for Manchester United. Juan Mata is also on with the Red Devils desperate for a goal.

Norwich have sent on Billy Gilmour and Przemysław Płacheta.

Shane Long is on for Southampton. Some willing legs to chase long balls forward. Armando Broja has been a passenger for much of this half. He departs.

Fifteen minutes to go.

Oh, wow!

Almost a stunning goal from Yoane Wissa!

He turns sharply and goes for glory with a dipping shot from 40 yards. Ben Foster is out of his goal and has no chance. He is delighted to see the ball bounce just past the post.

Norwich are hunting a winner.

Milot Rashica is about to pull the trigger inside the box but Diogo Dalot gets a crucial block to deflect it behind.

From the corner, Sam Byrom heads just over.

Brilliant save!

Fraser Forster is again called upon to pull out a stunning save. This time he has to react quickly to tip away Emile Smith Rowe's follow-up finish after the ball dropped following an aerial challenge in the box.

The Saints doing an awful lot of defending here.

Marcus Rashford is getting ready to come on.

Brentford looks to have weathered a bit of a storm.

After the equaliser, the Hornets were buzzing, but the visitors have restored a bit of order for now.

Are United heading for one win in nine in all competitions?

They're supposed to be challenging for a Champions League spot but they're struggling to overcome the Premier League's bottom club.

This is not going to improve the mood on a day fans protested against the club's owners.

Arsenal struggling to break this Saints side down.

If they lose this, they will be three points behind Spurs with a game in hand.

Two potential ways of looking at it for Tottenham if these scores remain this way - just think what could have been with a win over Brighton, or 'well, it could have been so much worse'.

Simon Stone
BBC Sport at Old Trafford

Manchester United need a goal.

England international Marcus Rashford is on the bench.

So too are untested young attacking players Hannibal Mejbri and Alejandro Garnacho.

Which way will he go?

The slick passing from United earlier in the match feels like a distant memory. Around 25 minutes plus stoppages left. United have sent on Nemanja Matic for Jesse Lingard.

A Watford win here takes them to 25 points, just three behind Everton.

They'll have played two games more than the Toffees, but it keeps the heat on.

Cristiano Ronaldo meets a corner by Alex Telles but it's straight at Tim Krul.

Paul Pogba was caught at the side of the head by team-mate Harry Maguire's boot as the defender fell to the ground during the set-piece.

Pogba punches the turf with his hand several times in response.

Watford have the bit between their teeth now.

Emmanuel Dennis chares in down the right and sees his cross blocked behind.

The corner comes to nothing, but the attack stays alive and Samir chests down before hammering a shot just wide.

Just wide!

Bukayo Saka cuts in from the right and fires an effort just past the far post.

Watford are on a high now.

They fancy a win here. It might not be enough to spark a late-season salvage job, but you never quite know.

Emile Smith Rowe is on for Arsenal. He replaces Cedric Soares, who has not played well on his return here.

Just under 30 minutes left for Arsenal to find at least a leveller.