England close on 68-3, trailing by 195 runs
Hosts reduce Australia to 85-4 before stunning Marsh century takes tourists to 240-5 at tea
But Australia then lose 6-23 to be dismissed for 263 as Wood takes superb 5-34
England drop four catches - Root & Bairstow two each
Robinson goes off mid-over in second session with a back spasm
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Marsh c Crawley b Woakes 118 (Aus 240-5)
Gone - 106 runs later and Chris Woakes finally gets his man!
Mitch Marsh's fabulous innings comes to an end as he plays back, gets an edge onto his back leg and the ball loops to Zak Crawley at second slip.
That will be tea. Something to celebrate for England at the end of an otherwise horrible session.
England just can't bowl to Mitch Marsh at the moment.
He drives effortlessly through the covers for his latest boundary to bring up the 150 partnership - it's been about as one-sided as a fifth-wicket stand gets.
This has been painful for England. As dispiriting a session as they've had in the series.
Alex Hartley
Former England bowler on BBC Test Match Special
The whole momentum has changed post lunch.
England's bowlers haven't been allowed to settle into their spells.
Henry Moeran
BBC Test Match Special commentator
What's frustrating the England fans so much isn't losing - people can live with that, albeit it's of course disappointing. But seeing a team packed with so much ability being undone by failing at the basics is just exasperating and feels so avoidable.
Andy Zaltzman
Cricket statistician on Test Match Special
Mitch Marsh has scored 106 runs in the session.
I make it the 85th time a player has scored a century in a session.
Head 37, Marsh 112
Tea can't come soon enough for England, they're going around the park here.
Mitch Marsh drills the ball past mid-on for four more. He's scored more than 100 runs in the session and a single means he's scored 100 runs since he was dropped.
Simon Mann
BBC Test Match Special commentator
That is another remarkable blow. You just knew the moment he hit it that it was six.
Mitch Marsh just keeps on going.
It's not even that short from Chris Woakes but Marsh is able to rock back and heave it into the Western Terrace for another six!
A pair of singles from Moeen Ali's latest.
We've got eight minutes left in a session that has gone about as badly as it could've done for England.
A dropped catch early on, the beneficiary has gone on to made a brisk century and they've lost a bowler (Ollie Robinson) to injury.
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For a team who are supposed to do things the opposition aren't expecting, the pattern of these Test matches is very predictable.
Will, Suffolk
Really good over from Chris Woakes, a maiden to Mitch Marsh, as he gets the ball to hoop away from the right-hander.
That's exactly how he was able to draw the edge just after lunch. Unfortunately for him and England, Marsh is seeing the ball a whole lot better now.
Matthew Henry
BBC Sport at Headingley
There are three Australia fans below the player balconies waving their shirts above their heads to celebrate Mitchell Marsh’s century.
Some knock.
Andy Zaltzman
Cricket statistician on Test Match Special
Mitch Marsh has hit 78 of his runs in boundary.
All three of his Test centuries are against England.
I make it the second fastest Australia century against England in England. Only Victor Trumper has done it quicker, in 95 balls.
Chris Woakes, the bowler who found Mitch Marsh's edge at the start of the session, is back on as we enter the last 15 minutes of the afternoon.
Simon Mann
BBC Test Match Special commentator
Mitchell Marsh has completely changed the feel of this game in the afternoon session, particularly after he was dropped by Joe Root.
A 102-ball century for Mitch Marsh. What an innings but England should have had him 88 runs ago...
Alex Hartley
Former England bowler on BBC Test Match Special
Mitch Marsh has made Test cricket look so easy.
Simon Mann
BBC Test Match Special commentator
Another Ashes hundred for Mitch Marsh. He saves his best for England.
It is has been a brilliant hundred. What a replacement.
Aus 218-4
Dabbed to backward point and Mitchell Marsh is through for a quick single to bring up his third Test hundred - all three have come against England!
It was a misfield from the sub fielder. Had he collected it cleanly then Travis Head may well have been run out.
Regardless, it has been an incredible innings from Marsh!
Simon Mann
BBC Test Match Special commentator
Mitch Marsh is just climbing into England's attack. He has struck it so cleanly so often.