That's all from us for now, but we'll be back to bring you live coverage of the night session match from Roland Garros a little later on.

On day one, that sees Novak Djokovic take on Frenchman Giovanni Mpetshi Perricard.

Emma Raducanu's tournament may be over, but fellow British player Francesca Jones is through to the second round after she defeated Beatriz Haddad Maia for first win at a Grand Slam.

You can read the latest reports from the French Open on our tennis page.

Catch you soon!

Annabel Croft
Former British number one on BBC Radio 5 Live

Nothing will replicate the matches you need going into a Slam. She's undercooked and it's understandable.

It will take time to build back up again.

This season has not gone to plan so far for Emma Raducanu, and she is clearly lacking in match sharpness after spending three months off the tour.

But there were some positive signs as she grew in confidence and belief towards the end there. Let's hope she can get some important minutes out on court over the coming weeks before Wimbledon.

Annabel Croft
Former British number one on BBC Radio 5 Live

If there was a positive to take out of this - and there were plenty of negatives, some of the lowest level tennis I've seen from her in a long time - but the one thing she did was fight and get back into it.

At one stage I thought she had a great chance to get into a final set. Who knows what would've happened if we'd got that.

She did enough to put the frighteners up her opponent.

She made it an interesting match but I think we didn't expect too much, did we?

Russell Fuller
BBC tennis correspondent on BBC Radio 5 Live

From 6-0 4-1 and 30-0, there was genuine fight from Raducanu. But the damage had been done.

Raducanu exits in the first round for only the third time in a Grand Slam.

Annabel Croft
Former British number one on BBC Radio 5 Live

I'm not 100% convinced with Sierra's serve. A lot of double faults. She's pushing it.

Nicely done by Emma Raducanu, who holds her nerve on serve to pull back within a point of Solana Sierra from 5-1 down.

But Sierra fires a winner cross-court for match points...

Russell Fuller
BBC tennis correspondent on BBC Radio 5 Live

Perhaps she's broken the back of Raducanu's resistance.

Annabel Croft
Former British number one on BBC Radio 5 Live

There's nothing to say there won't be another twist in the tale. Nothing would surprise me.

Shottt. Solana Sierra unleashes a ferocious backhand down the line as she opens up a 5-1 lead.

Once again she has a place in the second round within reach - but Emma Raducanu is still scrapping away.

Russell Fuller
BBC tennis correspondent on BBC Radio 5 Live

The backhand from Sierra is fabulous. She's really starting to look confident now.

Emma Raducanu misses a forehand to give Solana Sierra the advantage in the tie-break, and the Argentine follows that up with a sizzling return to take charge at three points to the good.

We're on serve after the opening three points of the tie-break, as Emma Raducanu takes over serving duties.

Annabel Croft
Former British number one on BBC Radio 5 Live

It's amazing what reputation can bring to a match. The nerves of getting through a first round, everything that goes along with it. It creates a different feeling on the court.

Wow. Another double fault from Solana Sierra!

Two break back points for Emma Raducanu... and Sierra misses a backhand. We're heading to a tie-break.

Annabel Croft
Former British number one on BBC Radio 5 Live

What a tussle that last game was. You felt the momentum was shifting towards Raducanu but some surprising errors.

You saw the celebration from Sierra. It meant a lot for her to get through that game.

Emma Raducanu did so well to get herself back into this set, but now it is very much back in Solana Sierra's hands.

Can the Argentine see this out now? There are signs that the 21-year-old is getting really tense, with a double fault following a loose forehand.

Annabel Croft
Former British number one on BBC Radio 5 Live

That's a surprising miss from Raducanu. She was in control of that rally. Sierra had to slice just to get back into the point to defend.

It was a routine rally ball. It looked fine but hits the net.

Emma Raducanu shuts down the break point - but Solana Sierra is all over the Briton's serve on the following point and drives a return down the line for another opportunity.

Raducanu, undoubtedly playing with a bit more confidence now, makes no mistakes with a forehand winner from mid-court, but Sierra won't go away.

The Argentine will serve for the match for a second time.