The medical timeout is over and Emma Raducanu is going to carry on. Just a reminder that we're at 15-30 on the Raducanu serve in the opening game of the deciding set.

Ashleigh Barty
Three-time Grand Slam champion on BBC TV

The way she slipped it almost looked like a hyper-extension.

Often it's that shock. You sit up and think ‘what have I done, what happened here?'

It's a difficult moment for everyone.

The physio is also having a look at Emma Raducanu's back, which she has been clutching at times throughout the match.

This is a difficult moment for Lulu Sun as well. She's sort of standing around unsure what to do and has decided to head over to her coaching box for a quick chat.

Ben: Lulu Sun is showing why a good volley game is really under-rated, especially for a left-handed player. Doesn't seem to matter whether it's on her own serve or not, she's gaining so many points by coming to the net.

Treatment from the physio has begun. Once that happens there are three minutes on the clock for them to try and resolve the issue.

Image source, Getty Images

Laura Robson
Former British number one on BBC Radio 5 Live and BBC Sounds

Emma Raducanu just kind of slid with her left leg, it doesn't look too bad.

Maybe she just over extended the knee ever so slightly.

She might just want some tape around the knee to ensure that it doesn't happen again.

The physio is out and it looks like she is also clutching her knee.

This is similar to the Alexander Zverev slip yesterday where it looked like he had overextended his knee.

Image source, Getty Images

Jonathan Jurejko
BBC Sport at Wimbledon

Oh dear. Gasps of concern are followed by silence.

Raducanu shakes her head instantly.

This is not good.

Oh. Emma Raducanu has slipped over at 15-30.

Ouch. Looks like an awkward ankle slip.

Adam: When do we start calling Henman Hill Raducanu Ridge?

Jonathan Jurejko
BBC Sport at Wimbledon

Lulu Sun is the first to re-emerge on Centre Court, receiving a smattering of applause like a guitar tech gets when they walk on stage before the band.

A rockstar's reception greets Emma Raducanu's return.

Wimbledon is mad fer it.

Emma Raducanu is one set away from reaching the quarter-finals at SW19 for the first time in her career.

Off we go.

Jonathan Jurejko
BBC Sport at Wimbledon

The fuse has been lit!

Initially Sun threatened to throw a bucket of water over it.

A nerveless response saw off the first set point, but she blinked again to hand over the second.

Raducanu hung tough, came through and the old place is rocking.

Harri: C’mon, Emma Raducanu Huge second set - absolutely deserves to be back in this matchup. Needs to stand strong and do what she does best.

Both players have gone for a little break after that second set.

Lulu Sun was playing much the better tennis but huge props to Emma Raducanu. She hung in there and it feels like the momentum is on her side now with the crowd massively up for this.

She appeared to be running out of steam but who knows what we'll get when she comes back from the break after no doubt giving herself a little talking to.

Laura Robson
Former British number one on BBC Radio 5 Live and BBC Sounds

I feel like we all need a bit of a breather after that one!

I somehow can't believe Emma Raducanu came through that set given how well Lulu Sun was playing.

You have to give Raducanu huge amounts of credit for staying calm, in to a third we go.

Ashleigh Barty
Three-time Grand Slam champion on BBC TV

Sun had been able to build so much pressure on the Raducanu service games

I think there is a little bit of a shift that has just balanced things a little bit for a one-set shoot-out.

Long!

Well it was a battle for Emma Raducanu but she's somehow hung on in there and takes the second set.

We'll go to a decider. Game on.

Image source, PA Media

Saved!

Emma Raducanu can't meet the forehand to the corner of the court and we move to deuce.

But Raducanu will get a second opportunity as she sends a stunning forehand winner down the line for advantage.

The crowd are bang into this now.