Anderson equals McGrath's record for a paceman of 563 Test wickets
Cook hits 33rd Test hundred in his final innings before international retirement
Opener also passes Kumar Sangakkara in 5th in all-time runscorers' list
Means Cook is Test cricket's most successful left-handed batsman
Root dropped on 94 by Pujara at slip on way to his century
Cook 89, Root 78
That's a paddlin'. Sweep that is - Joe Root bends low to work it round the corner for a single.
Rishabh Pant makes a very, very ambitious appeal for caught behind before Hanuma Vihari spins the next well wide and the India keeper concedes yet more byes.
That's the 150 partnership for Cook and Root.
Tex 81111
'Alastair, your wife's on the phone, something about a baby, could you come in now?'
Tim, OCS Stand
Lead by 250
A single apiece for Cook and Root and England's lead is 250.
Jadeja said yesterday that anything under that would be chase-able for India.
For now, the left-arm spinner skids one through low just under Cook's bat.
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Cook 88, Root 76
Cook clips a couple more into the leg side before Vihari over-pitches and the England opener drives him forcefully through the covers for just one.
Geoffrey Boycott
Ex-England batsman on BBC Test Match Special
This Test series has been like a football match where there wasn't much to choose between the teams but when one team finally got ahead, they scored plenty of goals.
Image source, ReutersLead by 245
Eek. Alastair Cook chips it round the corner but there is no leg slip in place and it's wide enough of short leg.
One more to the tally.
Joe Root bends forward to expose all three stumps but paddles the ball delicately fine for four more.
That's the 200 up for England.
Cook 84, Root 71
Sweet timing from Alastair Cook as he rocks back to slash Ravindra Jadeja through the covers for four.
Geoffrey Boycott
Ex-England batsman on BBC Test Match Special
This is a very difficult ground to stop people scoring on. It's big, the ball runs quickly across it.
Amy Lofthouse
BBC Sport at The Oval
People are hurrying around behind the stands in between breaks in play. Even nipping to the loo is a perilous activity. Every time a cheer goes up, everyone stops and waits for half a second. Is it at wicket? Is it a single? No-one wants to miss this Cook and Root partnership.
Cook 80, Root 71
Anyway, Hanuma Vihari is on to bowl his part-time off-spin.
Joe Root dabs it past slip for a couple before getting one for a sweep round the corner.
Plenty of easy singles around for this pair as they pick up three more runs off the over.
Maybe this is why the ball is out of shape?...
Andrew Samson
BBC Test Match Special statistician
This is the fourth change, so the fifth ball, in 61 overs.
What is wrong with this batch of balls.
India had the ball changed three times yesterday and it's being changed again now, the cherry not fitting through the 'handcuff' device.
Tim Robinson is out there again with his box of balls and a new one is handed to Virat Kohli.
Apparently a new international-standard Dukes ball cost £72 each.
Geoffrey Boycott
Ex-England batsman on BBC Test Match Special
India don't look like getting anyone out.
Lead by 228
Shami gets one to move away a tad and beat the outside edge of Cook's bat. Cook shrugs it off and pushes the next towards point for one.
Root then pounces on a short ball, pulling away to the fence and a decent effort by the fielder out there can't prevent the boundary.
A tough series for the captain but he's looked in fine fettle in reaching fifty...
Cook 77, Root 62
Good response by Jadeja to send down two dots.
Geoffrey Boycott
Ex-England batsman on BBC Test Match Special
I've sensed how Root is thinking. They are going to go after India. They are there for the taking.