Jamie Smith gets off the mark first ball as he joins Joe Root, on 36.

He's just picked up where he left off in the first innings, making batting look completely effortless.

Simon Mann
BBC Test Match Special commentator on BBC Sounds

It was entertaining, it was risky, and now it is over.

Sir Alastair Cook
Ex-England captain on BBC Test Match Special

If feels like Harry Brook could hit every ball for four but he doesn't. He is so controlled and selects the balls to hit very well.

I'm sorry if you have day four or five tickets. The declaration won't be far away.

Up and over cover for four.

Harry Brook holds the pose for good measure.

Declaration before lunch, anyone?

The lead is 350.

The fifty partnership is up.

Something tells me Sri Lanka are going to regret this one?

Yep, it's time to go through the gears.

Joe Root skips down the pitch and drives Jayasuriya for consecutive fours over mid-on.

Driven beautifully for four by Harry Brook, ending an over that was full of pretty unthreatening short stuff from Asitha Fernando.

There are early indications that this is going to be a very dangerous partnership from Sri Lanka's point of view.

From CricViz - Pope now averages 28 in the first session of Test matches compared to 38 in both the second and third sessions.

Decent over from Prabath Jayasuriya, just two from it, but he must still be seething about that dropped catch in his previous over.

You definitely don't want to give Harry Brook a second life when he's got a platform of 335 to work with.

It was pretty much the same shot that Ollie Pope was attempting.

Just with a slightly different result.

A flat-batted upper-cut off the short ball for four through the covers.

Harry Brook, you are outrageous.

Jonathan Agnew
BBC cricket correspondent

Poor Jayasuriya...a horrible drop then he gets smashed for six next ball.

Eng 91-3published at 22 overs

22 overs

Of course, the next ball is slammed for six.

Brutal.

Brook dropped on 9published at 21.4 overs

21.4 overs

Eng 84-3

I was saying...?

The plan works perfectly. Harry Brook attacks the spinner, gets his slog sweep completely wrong, and it falls perfectly in place for a simple catch at deep mid-wicket.

Except, Nishan Madushka makes a right mess of it and spills it.

Prabath Jayasuriya can't believe it. That's a huge miss.

It's been a disappointing showing generally but there is so much to like about this Sri Lanka side.

Kamindu Mendis is one of them, with some great knocks at number seven, and Asitha Fernando is another. It would be great to see them playing more Tests, to give themselves more of a chance. They're pretty much learning Test cricket on the job, so it's hardly an even playing field.

Image source, Getty Images

Bairstow did hit a century batting at three against Sri Lanka in 2018...

A skip down the pitch and a glorious drive for four by Harry Brook.

I suspect the spinner is going to be targeted here. There's not much turn on offer.