Eranga is back. Root clips one fine off his pads for a single.

Edward Sants: Does it get much better than Dion Dublin presenting Homes under the Hammer on BBC One?

Right, following on from our earlier chat about daytime quiz shows, I've got a challenge for you live text readers. You have to a pitch me a new cricket-based BBC daytime quiz show. What's it called? What's the format? Who's presenting? Go.

Lakmal was economical this morning but he's beginning to flag a bit here. Root and Vince get a three apiece - the Hampshire man is off to a bright start.

Here's another look at that superb catch by Angelo Mathews to get rid of Alex Hales. Ridiculous reflexes.

Michael Vaughan
Ex-England captain on BBC Test Match Special

"There's no swing, there's no seam. You'd expect England to go up through the gears as the day moves on."

That will settle James Vince's nerves - the field comes up, leaving a gap to be pierced at cover, and the new batsman obliges with a wristy drive off Siriwardana for his first boundary.

Ollie Bartlett: I directed said gameshow [see 14:31]. Hope you are enjoying it.

I'm not gonna lie to you, Ollie, I haven't been able to give it the attention it deserves due to this pesky cricket, but it looks brilliant. 

I'm a big fan of BBC daytime quiz shows - remember Pressure Pad with John Barrowman? Or the criminally underrated Question of Genius with Kirsty Wark?

James Vince is the new man. His first Test innings was a brief one, and he'll be aware that grace periods don't last long at this level. Lakmal tests him with a rozzer first up, whistling past the outside edge. Whoosh. 

Michael Vaughan
Ex-England captain on BBC Test Match Special

"It's a wonderful reaction catch. Hales tried to hit it a bit too hard, he just lost his shape. Two weeks on the trot he's got to the 80s and got out to a left-arm spinner trying to play a big shot."

Michael Vaughan
Ex-England captain on BBC Test Match Special

"It's all been about Joe Root, you could tell from the start he was picking up the length well. Once they're in, there shouldn't be anything that should worry them."

England 153-2 (48 overs, won toss)

Batsmen: Hales 77*, Root 50*

Fall of wicket: 39-1 (Cook 15), 64-2 (Compton 9)

Bowling: Eranga 10-1-41-0, Lakmal 10-3-26-1, Pradeep 12-3-38-1, Herath 14-0-43-0, Mathews 2-1-3-0.

Full scorecard

50 for Rootpublished at 14:43 British Summer Time 27 May 2016

14:43 BST 27 May 2016

Eng 151-2

Lakmal is back - for me he was Sri Lanka's best bowler in the morning. Root looks totally untroubled - he pings one through the covers and they scamper back for three, bringing up YJR's 20th Test fifty. 

And just before drinks, Alex Hales gets away with one when he squirts an outside edge that is grassed at second slip. It was a hard chance, Karunaratne the man, he took a blinder in the morning session but couldn't hang on this time.

Matt Flanders: "If we start having day/night tests, will the tea break become supper?"

Pradeep is trying to run the ball back into Hales, but the England opener looks solid - he meets an angling delivery with the full face of the bat and punches it back down the ground for four. 

Root has moved serenely into the forties without you even really noticing he was there. A cheeky paddle-sweep brings two as he continues to frustrate Herath.

Image source, Getty Images

Matthew Birch: What a wonderful cricketer Joe Root is. Makes batting look like the easiest thing in the world.

I'm quite fascinated by this new daytime quiz show. The contestants appear to be seated on thrones, while the screen is a giant picture frame, and Britton stands at a lectern like an auctioneer. They're being shown a succession of the kind of trinkets you'd find in your grandmother's attic. Do they have to guess how much they're worth? Root drives Pradeep through the covers and picks up two.

Rangana Herath is getting milked here. Runs off each of the first five balls of his over, including a two to fine leg for Root. I'd be thinking about getting Lakmal on here.

Francis Edwards: Stop comparing Hales to Warner. Warner averages 50 in Tests and is class. Hales has done 2 scores vs one of the worst teams.

Rakesh Pradhan: Before people start getting over excited about Hales... This is not by any means a strong bowling attack.