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  1. game, set and match

    Game, set and match - Gauffpublished at 17:22 BST

    Sierra 3-6 6-3 6-6 (7-10) Gauff

    Coco Gauff comes up with a big serve to earn two match points.

    And another one gets the job done!

    Gauff survives a scare to reach round three.

  2. Tie-breakpublished at 17:22 BST

    Sierra 3-6 6-3 6-6 (7-8) Gauff*

    The mini break is handed back again after Solana Sierra goes all in down the line but cuts it wide.

    Stunning stuff from Coco Gauff to go up a mini break.

    The American is stretching as she steps back over the baseline but hooks a winner into the corner.

    Remarkable!

  3. 'Sierra starting to get a taste of the big time'published at 17:21 BST

    *Sierra 3-6 6-3 6-6 (7-7) Gauff

    Sam Smith
    Former British number one on BBC Two

    Solana Sierra hasn't played too many of these deciding set tie-breaks. She has even forgotten to change ends! It happens to all of us.

    I wonder if she can channel what she did at Roland Garros when she beat Jasmine Paolini from a set down? That was the best win of her career. She is starting to get a taste of the big time.

  4. Tie-breakpublished at 17:20 BST

    *Sierra 3-6 6-3 6-6 (7-6) Gauff

    Solana Sierra goes big on a backhand from the middle of the court but she lets out a scream in frustration as it crashes back off the net.

  5. Tie-breakpublished at 17:19 BST

    Sierra 3-6 6-3 6-6 (7-4) Gauff*

    Solana Sierra celebrates with a clenched fistImage source, Getty Images

    Can Solana Sierra keep hold of it this time?

    She can. Some serious pressure building on Coco Gauff now.

  6. Andreeva holdspublished at 17:19 BST

    *Krejcikova 3-5 Andreeva

    Mirra Andreeva moves up the gears as she earns three break points before Barbora Krejcikova plants a volley wide at the net.

    The Russian fifth seed then holds to love with Krejcikova unable to consistently get her returns into play.

    The momentum is with Andreeva right now.

  7. 'Gauff doesn't seem too willing to take much risk'published at 17:18 BST

    *Sierra 3-6 6-3 6-6 (5-4) Gauff

    Tracy Austin
    Two-time Grand Slam champion on BBC Two

    It is almost like the win is on Solana Sierra's racquet because she is the one taking all the risks right now.

    It seems like Coco Gauff is just getting a lot of balls back in play and defending once again. She doesn't seem too willing to take much risk.

    It depends who can execute and if Sierra can keep that consistency.

  8. Tie-breakpublished at 17:18 BST

    *Sierra 3-6 6-3 6-6 (5-4) Gauff

    Solana Sierra gets the mini break back.

  9. Tie-breakpublished at 17:17 BST

    Sierra 3-6 6-3 6-6 (4-2) Gauff*

    There's football going on?

    A slip from Coco Gauff allows Solana Sierra to get her first hold.

    There are still one or two nerves from Sierra. A simple forehand at the net is overcooked to get his tie-break back on serve.

  10. Postpublished at 17:15 BST

    Emily Salley
    BBC Sport at Wimbledon

    There might be plenty of empty seats on Centre Court because of the football, but no one is leaving Court One at this point.

  11. Tie-breakpublished at 17:15 BST

    *Sierra 3-6 6-3 6-6 (3-2) Gauff

    Coco Gauff is under pressure on the baseline and she can only guide her forehand wide.

    Solana Sierra is back up by a mini break.

  12. Tie-breakpublished at 17:13 BST

    Sierra 3-6 6-3 6-6 (2-1) Gauff*

    A reminder that this is a 10-point tie-break.

    Solana Sierra moves a couple of points clear but can't make it three in a row.

  13. 'Every single point counts'published at 17:13 BST

    *Sierra 3-6 6-3 6-6 (1-0) Gauff

    Sam Smith
    Former British number one on BBC Two

    It is those kind of double-fault errors that have really mounted up in this final set for Solana Sierra.

    It certainly isn't helping her mum's heart rate, she is a constant supporter of her daughter.

    A tie-break is a mental gear change because every single point counts.

  14. Tie-breakpublished at 17:12 BST

    *Sierra 3-6 6-3 6-6 (1-0) Gauff

    Ah.

    Coco Gauff is down a mini-break from the outset.

  15. Sierra holdspublished at 17:11 BST

    Sierra 3-6 6-3 6-6 Gauff*

    Solana SierraImage source, PA Media

    This is going to be a nervy game for Solana Sierra.

    The Argentine doesn't let it show though. She quickly moves into a 40-0 lead when Coco Gauff's forehand hits the net.

    But a double fault opens the door for Gauff.

    That door is quickly slammed shut. We're going to a tie-break.

  16. Postpublished at 17:11 BST

    Krejcikova 3-2 Andreeva*

    Harry Poole
    BBC Sport at Wimbledon

    There are a significant amount of empty seats on Centre Court, and in the Royal Box too, for the second match of the day.

    Early developments in Atlanta may mean a few begin returning soon, though...

  17. Fonseca breaks in third setpublished at 17:11 BST

    *Fonseca 6-1 7-5 4-3 De Jong

    24th seed Joao Fonseca has just converted his third break point of the third set to break Jesper de Jong.

    The Brazilian teenager is two games away from back-to-back third-round appearances at Wimbledon.

  18. Andreeva breaks backpublished at 17:08 BST

    Krejcikova 3-2 Andreeva*

    Mirra Andreeva is finding her feet in this match now.

    Barbora Krejcikova was tested in her last service game, which lasted over 10 minutes, and now Andreeva finally makes a break point count as she scoops a forehand winner down the line after doing magnificently to keep the ball alive.

    Game on.

  19. Gauff holdspublished at 17:08 BST

    *Sierra 3-6 6-3 5-6 Gauff

    Coco Gauff builds on that momentum to lead 30-0.

    At 40-15, Gauff steps up to the net and whips a lovely cross-court winner for the hold.

    Pressure back on Solana Sierra.

  20. 'Gauff an incredible competitor'published at 17:07 BST

    Sierra 3-6 6-3 5-5 Gauff*

    Tracy Austin
    Two-time Grand Slam champion on BBC Two

    Coco Gauff is so intelligent. She understands that Solana Sierra is going to be feeling so many nerves right now.

    She just made sure to get a lot of balls back in play. She also played a lot of slices where Sierra had to create her own pace.

    It isn't new to see Gauff wiggle her way out of predicaments. She is an incredible competitor.