Kamindu Mendis keeps going, cutting Potts nicely to the point boundary.

We've got a few overs to go before the close.

Speaking of which, how about this for a good photo from Old Trafford today...

Image source, Reuters

Daniel Norcross
BBC Test Match Special commentator on BBC Sounds

That shot reminded me of last year's Ashes when Nathan Lyon limped off, and England proceeded to throw away three wickets.

Back comes Dinesh Chandimal, who retired hurt earlier today after being struck on the hand by Mark Wood.

He gets the second stage of his innings going straight away, pushing a single into mid-wicket.

Vic Marks
Former England spinner on BBC Test Match Special

The fast bowler has gone off, that's a big bonus for Sri Lanka, but Rathnayake goes for an almighty swipe at Joe Root.

Root is a decent bowler but that is just soft. Mendis is doing such a brilliant job, just support him.

Sri Lanka could've made it to the close with a glimmer of hope.

Jonathan Agnew
BBC cricket correspondent

That's an awful shot. What was he doing, 15 minutes to go?!

Vic Marks
Former England spinner on BBC Test Match Special

England are understandably very, very sensitive about Mark Wood. They've taken the ball off him quickly.

Image source, PA Media

Uh-oh.

Mark Wood pulls up in his run-up. He doesn't look in serious discomfort, but Ollie Pope isn't taking any chances - he sends the seamer off the field.

Joe Root will finish the over.

Image source, Getty Images

Our friends at Cricviz have been crunching the numbers and since the ball change, it's not as dramatic as you might think. The average swing since the ball change is the same as the 10 overs prior to the ball change. Woakes, however, is benefitting individually, 1.07 degrees of swing on average for him compared to 0.80 degrees overall.

Rathnayake is playing confidently, driving Woakes to mid-off for two.

A picks up a further single square.

Wood responds with a full ball - blocked out, I think Mendis was expecting a bouncer.

A big grin from the England tyro.

Jonathan Agnew
BBC cricket correspondent

A tremendous shot to reach the half-century, like something you'd see in a white-ball game.

I don't think Mark Wood will enjoy that.

Wallop!

A cracking way for Kamindu Mendis to reach fifty, heaving Mark Wood over the mid-wicket ropes with a big swing of the bat.

It comes from 95 balls.

Jonathan Agnew
BBC cricket correspondent

It is extraordinary how much everything has changed since the ball change.

Michael Vaughan
Former England captain on BBC Test Match Special

The problem for Sri Lanka is you want to see some more deterioration in the pitch. This pitch is holding up as it always does. For Sri Lanka to have any chance they need to get a 200 lead and that would be remarkable from here.

Mendis attempts a big flash of a drive, missing the ball entirely - he was too far away to offer any chance of an edge.

A maiden for Chris Woakes.

Another inside edge!

It looks pretty faint, but it's enough to save Mendis.