Summary

  • Group Boris Becker

  • Alexander Zverev v Jack Sock - BBC Radio 5 live sports extra

  • Winner of Zverev against Sock will go through to semi-finals

  • Earlier result: Roger Federer beats Marin Cilic 6-7 6-4 6-1

Live Reporting

  1. That's all from me for tonight.

    You can read the full match report here.

    I will be back with Dominic Thiem and David Goffin's match tomorrow at 14:00 GMT.

  2. 'A roller coaster' - Sock

    Jack Sock on Sky Sports: "That was a roller coaster match, he played well in the second, I didn't have the hottest start in the third but I kept in there and kept fighting".

    Speaking about his point penalty he said: "Sometimes you have to let it [the frustration] out, blow it off and keep playing".

    On his semi-final against Dimitrov: "He has played some incredible tennis, had an amazing 2017, I will have to play some of my best tennis to win. We have played each other numerous times before, know each other well and it should be a fun match."

  3. Miles Maclagan
    Former British Davis Cup player on Radio 5 live sports extra

    It’s an incredible result and how many twists and turns were there? Sock didn’t show up for the second set but it’s the way he plays, he’s in and out. You can see how effective he can be when he’s on form.

    But a big disappointment for Sascha Zverv, a horrible feeling when the opportunity was there and he just didn’t out his game on court.

  4. So Jack Sock joins Roger Federer and Grigor Dimitrov in the last four.

  5. You would not have predicted that after Sock's capitulation in that second set.

  6. game, set and match

    Game, set and match Sock

    Zverev 4-6 6-1 4-6 Sock

    Zverev goes wide and Sock is through to the last four.

    Jack SockReuters

  7. Zverev double faults and Sock has match point.

    Huge moment.

  8. Sock a game away from semis

    *Zverev 4-6 6-1 4-5 Sock

    Jack SockGetty Images

    "Shut up seriously," Sock says to the crowd as he double faults, put off by their shouts.

    A delicate drop shot sees him lead again at 40-15 and he then serves out the game.

    Sock is a game away from the semi-finals.

  9. Zverev levels at 4-4 in decider

    Zverev 4-6 6-1 4-4 Sock*

    It looks like the momentum has shifted back to Zverev as he levels at 4-4 in the final set.

  10. Miles Maclagan
    Former British Davis Cup player on Radio 5 live sports extra

    What a turnaround with Sock 4-1 up and looking like he was sailing home. It’s hard to imagine who’s going to be able to get over the line tonight. The Zverev backhand was really, really solid there.

  11. Zverev breaks back

    *Zverev 4-6 6-1 3-4 Sock

    Jack Sock nets with a backhand at 30-40 and suddenly Zverev has a lifeline.

    A big serve from the American saves the break point and he shakes his fist, he likes that.

    A wild return from Sock goes very long and Zverev has another chance.

    It's a tense rally and Zverev breaks back as Sock floats a backhand slice into the net.

    Alexander ZverevGetty Images

  12. Zverev 4-6 6-1 2-4 Sock*

    Zverev stays in touching distance with a crucial hold.

  13. Sock leads 4-1 in decider

    *Zverev 4-6 6-1 1-4 Sock

    Sock comes up with some big serving, nudging the speed dial past 130mph and consolidates his break.

  14. Sock breaks again

    Zverev 4-6 6-1 1-3 Sock*

    This is the Zverev of the first set and he double faults to give Sock two break points.

    The American nets his first attempt and then the German levels with a serve down the middle.

    Zverev is long with a passing backhand and then double faults again to gift the game to Sock.

    Alexander ZverevGetty Images

  15. *Zverev 4-6 6-1 1-2 Sock

    Zverev looks rattled again.

    Sock wins the game with a wonderful drop volley at the net and the American is back in front for the first time since the opening set.

    Jack SockAFP/Getty Images

  16. Sock breaks back

    Zverev 4-6 6-1 1-1 Sock*

    This wasn't in the script.

    Zverev makes a string of unforced errors and Sock breaks back.

  17. David Law
    Radio 5 live sports extra commentator at London's O2 Arena

    What Sock has just done is frankly dangerous, hitting the ball as hard as he can into the crowd. He’s got no clue where it’s going. Hopefully it didn’t hit anybody. I can understand the frustration but you just can’t do that.

  18. Zverev breaks early in the third

    *Zverev 4-6 6-1 1-0 Sock

    Alexander ZverevGetty Images

    Sock is still playing erratically and Zverev gets a break point at the start of the third set.

    The American brings it back to deuce but Zverev then sets up another break.

    The German then battles to win the next point as Sock fires wide.

    Zverev takes the early break in the third.

    Sock reacts by taking a ball out of his pocket and blasting it into the crowd, earning a penalty point from the umpire.

  19. Jack Sock takes a lengthy break before the third and final set.

    Mind games maybe?

    He finally returns and we have a one-set shoot-out to reach the semi-finals.

  20. Russell Fuller
    BBC tennis correspondent on BBC Radio 5 live sports extra

    That wasn’t too clever from Sock’s perspective, he rather let that one unravel too quickly. He didn’t burn too much energy in that second set, that’s one thing we can say.

    Jack SockEPA