Root bats all day for 186 - run out from last ball
Root now fourth on all-time England Test runs list after passing Pietersen & Gower
Buttler (55) and Bess (32) offer stoic support to Root
Sri Lanka spinner Embuldeniya takes seven wickets
Second Test, day three, Galle, England 1-0 up in two-match series
Sir Alastair Cook
Former England captain on BBC Test Match Special
Sri Lanka haven't really changed their tactics to Root. It's a bit disappointing. He's obviously in the best form you can be in. You'd like to think something had been discussed.
Four! Lasith Embuldeniya drops short and gets thunderously pulled to the fence by Joe Root.
Jonathan Agnew
BBC cricket correspondent on Test Match Special
Joe Root is in a very good mood. He has just given the short-leg fielder a little fist pump, he has been talking to Dickwella. He is making all sorts of new friends.
Ouch. Joe Root hammers a sweep into the poor fielder at short leg and then fist-bumps him in apology. Kusal Mendis took an absolute battering off Root in that position in the first Test.
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Jacob Hodgkinson: 15 years ago the Monkeys smashed that album out, and 15 years ago England drew 1-1 away in India with Collingwood caning it. I'll take that again in both cases. Nothing like nostalgia, is there...
Sir Alastair Cook
Former England captain on BBC Test Match Special
Bairstow bludgeoned that. He didn't quite time it.
Jonny Bairstow's had enough of this defending malarkey. He skips down the pitch to Dilruwan Perera and absolutely hammers the ball back past him for four, causing Joe Root to duck for safety at the non striker's end.
Sir Alastair Cook
Former England captain on BBC Test Match Special
That hit Root miles outside the line.
Niroshan Dickwella might have the greatest appeal game going, but he's an absolutely terrible judge of anything. He spends a long time appealing for an lbw against Joe Root that pitched at least a foot outside the line. The 100 partnership is up between this.
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Ross: Nice, calm and boring early morning please England.
Joe Root takes a massive stride forward and tickles yet another sweep fine for one, while Jonny Bairstow defends his first ball of the over.
Galle is looking particularly beautiful this morning, it has to be said.
Lasith Embuldeniya, who dismissed both openers yesterday, will get things going from the opposite end.
Jonathan Agnew
BBC cricket correspondent on Test Match Special
That is a tiny deflection if there was one.
Ooft. Joe Root goes down to sweep his third ball of the day and ends up under-edging it past his stumps and between Dickwella's legs for four. That was perilously close to his off stump...
Sir Alastair Cook
Former England captain on BBC Test Match Special
Sri Lanka must come out and change their plan to Joe Root. They can't allow him to keep sweeping. Whether they bowl slower or do it with field placings, they have to have thought about it overnight.
Joe Root works the first ball of the day down to mid-on, but can't take a single as the close fielder advances.
I didn't realise this is Joe Root's 99th Test match. You sometimes forget how long he's been around.
Anyway, he's out in the middle, scratching at his guard, and it'll be Dilruwan Perera to bowl at him first up.
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Josh Land: McGregor win and a Root 100 please.
You can listen to UFC 257 commentary here.
Sir Alastair Cook
Former England captain on BBC Test Match Special
A big, big day for England. They will hope it will be played by Joe Root who is playing as well as you can in the sub-continent.
That's the sort of dedication we're looking for, George.