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Summary

  1. Roger Federer beats Mischa Zverev 6-1 7-5 6-2
  2. Four-time champion Federer into 13th Australian Open semi-final
  3. Venus Williams & Coco Vandeweghe into semis
  4. Stan Wawrinka beats Jo-Wilfried Tsonga

Live Reporting

By Chris Osborne

All times stated are UK

Get involved

  1. Konta v Serena - where will you be?

    Konta

    If there was ever a time to stay up past your bed time - or get up way before your alarm call - then tonight is the night.

    British number one Johanna Konta takes on tennis royalty in the shape of Serena Williams in the quarter-finals.

    Can Konta do the unthnkable?

    Read our tennis correspondent Russell Fuller's preview here.

    And join us back here at 02:00 GMT for live coverage and radio commentary of the showdown.

    Until then, try and res up, yeah?

  2. Post update

    So here's how the men's semi-finals look.

    Roger Federer v Stan Wawrinka, which will be played on Thursday.

    Rafael Nadal or Milos Raonic v Grigor Dimitrov or David Goffin - both of these quarters are tomorrow.

  3. 'Kids don't sleep all day'

    It's worth remembering that Roger Federer has two sets of twins - which is likely more tiring than Grand Slam tennis.

    As a father myself, woken up twice by my daughter last night, I can only tip my hat to Roger, who has his whole family with him in Melbourne.

    "The family have been busy. Kids don't sleep all day like we do. With the night sessions I have to sleep in the morning but they're really enjoying it here.

    "They go outside every day. They tell me every day 'please don't lose today, we want to stay longer'.

    "Although one of my daughters told me she was ready to go skiing in Switzerland now."

  4. 'A semi with Stan couldn't be cooler'

    Federer

    Roger Federer speaking on court about facing Swiss compatriot Stan Wawrinka in the semi-finals: "My expectation was not to play Stan Wawrinka in the semis. I thought maybe I could get to the fourth round or quarters - that's what I told the Swiss press.

    "Then when I saw the draw. People said it was a dream draw, but I thought 'what am I missing? It's not a dream draw'.

    "A semi with Stan couldn't be cooler for the both of us.

    "He's a clutch player now. He's won a Slam the last three years, he was right there for us in the Davis Cup.

    "For me to play against Stan I have to play aggressive, the more time I give him the better he is. I'm happy he's got this far but he doesn't need to go a step further - Stan knows I'm joking."

  5. Post update

    Leon Smith

    Great Britain Davis Cup captain on Radio 5 live sports extra

    Federer has played great. He's feeling and seeing the ball so well. The match against Wawrinka will be fascinating. The way Federer is playing, he's maybe slight favourite.

    Roger Federer of Switzerland
  6. 'I was so happy for Mischa'

    Zverev 1-6 5-7 2-6 Federer

    Roger Federer after reaching the semi-finals: "I thought Mischa played an incredible tournament. I was so happy for him - he has gone through tough times and it's nice to see guys like that back on the court for a second chance or even a fifth chance. 

    "He has a career best ranking now and they can do it as brothers (with Alexander) which is cooler."

    Mischa Zverev waves
  7. Game, set and match

    Zverev 1-6 5-7 2-6 Federer

    Serve out wide, return drops mid-court, dispatched with the forehand.

    That was 90 minutes of Swiss sensation.

    Here comes Federer's 13th Australian Open semi-final.

    What's he got to say?

    Roger Federer celebrates
  8. Match point

    Zverev 1-6 5-7 2-5 Federer*

    Ace. Ace. Net. Net. We're at 30-30.

    Volley into the net from Federer and break point. Put the cork back in, chaps.

    Ace for deuce.

    Serve out wide - good one. Match point.

    Roger Federer
  9. Federer breaks

    Zverev 1-6 5-7 2-5 Federer*

    In case you were unaware, Roger Federer has command of gravitational forces.

    A slinky backhand looks for the world to be dropping wide but falls like a stone on to the line.

    Zverev goes to 40-15 but Federer steps into a second serve and plays what looks like a cover drive winner.

    We go to deuce and, at Zverev advantage, Federer tippy-toes to one mid-court to apply a top-spin doozy. Tremendous.

    Zverez bunkers down and we're at deuce number seven. Now eight. Nine. Get your fingers, toes and abacus out... 10. Five break points saved.

    A makeable volley hits the net from Zverev and break points number six is bagged with a backhand return that zips down the line like a torpedo.

    The Fed Express is on course for the semis.

    Mischa Zverev reacts
  10. Post update

    *Zverev 1-6 5-7 2-4 Federer

    Zverev is rushing. Possibly just short of panicking. But certainly rushing.

    A frantic backhand crashes into the net.

    And he doesn't even bother chasing a slide-away forehand that secures the hold.

    Roger Federer
  11. Federer breaks

    Zverev 1-6 5-7 2-3 Federer*

    Backhand passing winner.

    Forehand passing winner.

    Federer is giving Zverev's net game short shrift as the German volleys into the net for break point.

    Zverev finally covers one down the line and has it back to deuce.

    World-class lobbing from the Swiss - once to get Zverev on his heels and another dropping right on the baseline, before a ridiculous pop-up shot from his toes followed by a backhand winner for the break.

    Remarkable.

    Roger Federer
  12. Post update

    *Zverev 1-6 5-7 2-2 Federer

    Federer manages to find a punchy forehand passing shot from dead centre of the court - few would have seen that angle open up.

    Roger ticks along on serve.

  13. Get Involved

    #bbctennis

    joshua: This just proves that Mischa Zverev caught Andy on a bad day! as incredible as it was I guarantee you he wont ever do it again.

    Mischa Zverev hits a return
  14. Post update

    Zverev 1-6 5-7 2-1 Federer*

    If you're Zverez, you can clutch at straws and find minor suggestions of a Federer wobble as a backhand goes awry.

    A tricky pick-up volley from the German comes back too long from Federer and it's a secure hold.

  15. Get Involved

    #bbctennis

    IG: I just left during the warmups for a quick shower and @rogerfederer is already 2 sets up. Where is Fed rushing to?

    It's been quick, but possibly time to reassess the length of your showers my friend.

  16. Post update

    *Zverev 1-6 5-7 1-1 Federer

    While Zverev has to grit his teeth to hold serve, Federer coasts through. Nothing to see here.

    Roger Federer holds a sign
  17. Post update

    Zverev 1-6 5-7 1-0 Federer*

    Remember, this is the same Zverev who dispatched with Andy Murray in four sets.

    And he's not playing like a chump here.

    He's just facing the Swiss Superman.

    A backhand return winner from Federer could have sprinkles and a flake in it, it's so delicious.

    Zverev clenches his first as he goes to 30-30 with a serve out wide. The German is trying to draw on any positives he can muster.

    Oh boy - he's missed an overhead sitter for deuce. But rescues the game.

  18. Post update

    Gigi Salmon

    BBC Radio 5 live sports extra commentator

    There's some stunning tennis on display from Federer. Maybe people's dreams of Federer getting to the final, and winning it, are becoming more possible.

  19. Post update

    *Zverev 1-6 5-7 Federer

    Even Federer's challenging of line judge calls is perfect.

    Zverev thinks he's tonked a perfect return only for Federer to plonk a forehand right on the edge of the line.

    It's other-level tennis from the 17-time Grand Slam champ.

    Roger Federer serves
  20. Murray set to miss Davis Cup clash

    Leon Smith

    Great Britain Davis Cup captain on Radio 5 live sports extra

    We've got a strong team with players in really good form. We'll just keep some dialogue going with Andy and see how he feels in the coming days. We have time on our hands.

    Andy has been unbelievable for our team. He gets on great with all the players and the staff and loves playing for Great Britain, but he has to look after himself and has played an awful lot of tennis, particularly in the last six months of the year. At some point you need to take a break.

    Britain face Canada in a World Group first round match from 3-5 February.