That's Greenway's best shot so far, turning a rare loose delivery from Coyte off her legs for four.

Remember the short-lived American rock band Good Charlotte? Well, this is an over that showcases both Good Charlotte and Bad Charlotte. The good: a clever glide from Edwards down to the third-man boundary and an authoritative punchy cover drive. The bad: an uncontrolled swipe at a wide delivery that loops up and drops agonisingly short of point. Close shave for the England skipper.

Jim Maxwell
BBC Test Match Special

"It's a tight game here, England are really battling away here."

Ooh, that's none too convincing from Lydia Greenway, reaching well away from her body and squirting a wide Holly Ferling delivery aerially through gully. Ferling then gets one to jag back the other way and hit Greenway on the thigh-pad. nervy moments for England.

Melinda Farrell
Journalist

"Charlotte has faced Ellyse for man years, she and Lydia Greenway are both experienced and have seen it all before. They just need to dig in now and bat for time."

Edwards, who isn't short of a dramatic facial expression or two, shows her amazement as Perry gets one to stay low and almost sneak under her bat. Edwards responds in the best possible way, creaming Perry back down the ground for four. Good contest this.

Ferling, who is capable of extracting a little more bounce from the pitch than the other Australian bowlers, is proving difficult to score off. A Charlotte Edwards single is all England manage off that over.

Jim Maxwell
BBC Test Match Special

"Edwards has got a good eye, that's for sure. She looks like an lbw candidate but she does pick the bowlers apart. She's clearly a class act."

Australia scent blood in the water here. Ellyse Perry is recalled to the attack with England flailing like a stranded surfer. Der-ner der-ner. Perry nearly strikes too, rapping Greenway on the pads, but the umpire correctly adjudges that the ball pitched outside leg.

Lydia Greenway is the new batter, and she's got quite the job on her hands as she and Charlotte Edwards attempt to arrest this nosedive. Greenway is down the other end as Edwards plays out a maiden.

Izzy Westbury
Middlesex captain on BBC Test Match Special

"Knight has looked good, she played some wonderful cover drives and perhaps it was a momentary lapse in concentration. And it comes just as England were rebuilding."

Image source, Getty Images

Alison Mitchell
BBC Test Match Special

"There's a lot of excitement when you see Ferling running in because of the bowler she is and the bowler she can be."

Now then, another new bowler for England to get to grips with as Holly Ferling replaces Ellyse Perry. Ferling is a bowler you can file under 'pacy but raw'. It's a decent start from the Aussie quick, the one error a leg-sidish delivery which Knight clips deep into the leg side for two.

Australia make their first bowling as Sarah Coyte replaces Megan Schutt. She's a purveyor of nagging medium-pace, and Charlotte Edwards'charge is momentarily halted: she blocks out a maiden.

Image source, Getty Images

The runs are beginning to flow now for Charlotte Edwards - Perry overpitches and watches the ball zip back past her toes off the perpendicular blade of the England skipper. Top shot.

Image source, Getty Images

And no sooner had I said that than Charlotte Edwards gets a big stride forward and unfurls a lovely cover drive that rolls away to the fence. A first boundary for the skipper. And having found her timing, she follows it with another, clipping one wristily off her pads to the midwicket boundary. Good over for England.

If you're just getting into cricket and are wondering about some of the weird and wonderful terminology to describe fielding positions, hopefully this graphic helps.