Watford came charging out of the blocks, but West Ham stayed calm and turned the game. They look good for their 2-1 lead.

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Now this is a graphic that will soon dramatically change.

You can see the average position of players on the pitch here with Southampton players (black) pushed up high, adopting a high line, while Spurs were content to sit in a little.

That pressure and harassment of players saw Southampton concede 12 fouls by the time Mohammed Salisu was sent off. Spurs conceded just two in the same time period.

Salisu, now back in the changing room after picking up two yellows in 12 minutes, was the game's worst offender on four fouls.

It's a feisty game now. Romain Perraud and Dele Alli briefly square up after the latter charges in to block a cross from the former.

Jacob Sorensen could have equalised for Norwich 22 seconds before Jean-Philippe Mateta scored Palace's second.

Dean Smith's side now find themselves 3-0 down as we enter first-half stoppage time. Five minutes added on.

Juan Hernandez tries to make something happen for the Hornets, but after winning the ball he fires an angled shot wide from the edge of the box.

West Ham have looked very comfortable since turning this game their way. They look far more likely to extend their lead than Watford do of finding an equaliser.

Saints fans are now chanting 'off, off, off' at the referee. They want Sergio Reguilon to follow Mohammed Salisu down the tunnel after a coming together with Shane Long that has left the home player down holding his head.

There's no card from Anthony Taylor. VAR will have a look of course.

To me, it just looked like an accidental clash.

Salisu's offence sees him get a second yellow, followed by a red.

A real game changer.

Penalty all day long!

Son Heung-min is clattered by Mohammed Salisu in the box.

And the Saints defender has worse to come...

West Ham scored twice in 1 minute and 49 seconds this afternoon. However, that is only the third least amount of time in which a side has scored twice in the Premier League this season.

Watford themselves (1:29) and Everton (1:35) have both scored two goals faster this top-flight campaign.

Ironic applause for Paul Tierney as he marches back on to the Selhurst Park pitch.

That break was six and a half minutes long.

Chris Sutton
Former Premier League striker on BBC Radio 5 Live

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What a team, West Ham, under David Moyes, they are an incredible team, they really are.

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Tottenham's first real chance to attack at pace sees Son Heung-min found in the middle of the pitch, with space in front of him.

Saints defenders get back to stop him advancing before the forward fires a shot straight at Fraser Forster.

There's a break in play at Selhurst Park as referee Paul Tierney's microphone appears to have stopped working.

Delia Smith looks less than impressed in the crowd.

Watford look shellshocked now. West Ham's quickfire double has been a real hammer blow. See what I did there?

Not only has the lad Ward-Prowse found the net, so far he has won all three of his duels and his mark of 85.7% is the best for pass completion in the Southampton side.

His strike was a bit tidy too.

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