That should have been game over.

Frida Maanum's pinpoint cross finds Jordan Nobbs unmarked but the England midfielder blazes over on the turn. Had more time than she realised.

Katie McCabe lets fly from 30 yards out.

For a second it looks like it's flying into the top corner but it keeps rising and goes harmlessly over.

Arsenal get us under way.

Second goal key here. Arsenal get it, game over. If not...

Both sides back out on the pitch.

As things stand, we're not getting an upset tonight but Ipswich boss Joe Sheehan believes his Tractor Girls can provide one on Sunday.

Read Adam Williams' preview here ahead of Ipswich's quarter-final against West Ham.

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We've got three more quarter-finals for you on Sunday - and you can follow the action right here on BBC Sport.

There's another David v Goliath clash as third-tier Ipswich host WSL side West Ham - and that's live on the BBC Red Button, iPlayer and BBC Sport website.

WSL giants Chelsea and Manchester City will also be bidding to secure semi-final spots.

Here's Sunday's full fixture list:

• Ipswich Town v West Ham United (12:30 GMT)
• Manchester City v Everton (12:30 GMT)
• Chelsea v Birmingham City (14:00 GMT)

Sweden striker Stina Blackstenius' goal has put the favourites in front at the break.

It's a fair reflection on the balance of play with Arsenal dominant against their Championship visitors.

Can the underdogs find a route back into the game in the second half?

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What a move, and what a save.

Arsenal work the ball beautifully down the left as Tobin Heath and Kim Little combine to tee up Jordan Nobbs - but her shot with the outside of the foot from 18 yards is superbly pushed aside by Coventry keeper Lucy Thomas.

Coventry twice want free-kicks in the Arsenal half for challenges on Liv Fergusson and Katie Wilkinson but nothing doing.

What a chance for the Gunners to make it two.

Nikita Parris, probably the pick of the Arsenal attacking players thus far, cuts a ball back for Kim Little.

But the Scotland international smashes over the angle of bar and post.

Big few minutes before half-time now. Coventry cannot afford to concede a second.

Arsenal are pushing. Tobin Heath just saw a goalbound effort blocked.

Great response from Coventry.

The underdogs earn a free-kick out wide and Charlie Estcourt's delivery is glanced just wide by Grace Riglar.

Arsenal stepping things up here, nice link-up between Tobin Heath and Katie McCabe down the left.

Coventry clear for a throw but Jordan Nobbs puts in a lovely cross that Heath meets with a header - it's straight at United keeper Lucy Thomas though.

For all their possession, Arsenal have still only registered one effort on target, Jordan Nobbs' early shot that was cleared off the line by Elisha N'Dow.

Gunners captain Kim Little is doing her best to drive Arsenal forward but you do wonder if the nine changes the hosts have made are not helping them.

They are not flowing yet and Coventry are keeping them at arm's length fairly comfortably.

Image source, Getty Images

Image source, Getty Images

Very sporting from Coventry, as on a rare attack from the visitors, Arsenal defender Jen Beattie goes down injured as United kick the ball out.

She's okay to continue though.

Don't think Elisha N'Dow planned that.

The Coventry defender - on loan from Aston Villa - heads Tobin Heath's set-piece towards her own goal but fortunately for her it's straight at United keeper Lucy Thomas.

Arsenal have apparently enjoyed 75% possession so far - and I'm amazed that figure is that low.

Nikita Parris draws a foul from Coventry's Wales midfielder Charlie Estcourt - United's only full international.

Parris is down and receiving treatment to her ankle.

Arsenal free-kick around 35 yards out.

What a lovely ball from Nikita Parris.

It finds Stina Blackstenius in the right channel and her ball across the box is parried by Coventry keeper Lucy Thomas as defender Eliha N'Dow completes the clearance.

Danger averted for the visitors but the threat was there.