Good morning everybody, and after Venus Williams' straight sets victory over Anastasia Pavlyuchenkova we've got live coverage of the game between CoCo Vandeweghe and Garbiñe Muguruza.

Don't go anywhere as we still have one more match from the morning session on Rod Laver and it is a big one. Stan Wawrinka v Jo-Wilfried Tsonga. You can follow the action live in this link.

What a truly incredible performance by CoCo Vandeweghe who is typically chirpy in her post-match interview which is great to see.

VANDEWEGHE 6-4 6-0 MUGURUZA GAME, SET, MATCH AND BAGEL!

Seven games in a row for Vandeweghe. SEVEN GAMES IN A ROW! Muguruza has been completely blown away in this second set and Vandeweghe has now dealt with the world number one and the winner of the French Open. Can anyone stop CoCo Vandeweghe? The next to try will be Venus Williams.

VANDEWEGHE 6-4 5-0 MUGURUZA BREAK!

No chill from Vandeweghe as she takes her sixth game in a row. She now needs just one more game to achieve a remarkable victory. There's still the odd wild slash but her returns are too much for Muguruza.

VANDEWEGHE 6-4 3-0 MUGURUZA BREAK!

She's fiery, she's focused, and she fancies this. CoCo Vandeweghe breaks again and Muguruza is starting to lose all belief in her game. Whether she's challenging the umpire or playing with the cameras with her expressive face Vandeweghe is loving being in the limelight and it's thoroughly entertaining to watch.

VANDEWEGHE 6-4 2-0 MUGURUZA BREAK!

Already she has broken! Vandeweghe is full of confidence now and she has raced into a two game lead in this second set. Muguruza under pressure.

VANDEWEGHE 6-4 MUGURUZA SET!

Muguruza holds impressively and she then starts to make a move to put the pressure on Vandeweghe during her service game. A couple of big aces give Vandeweghe what she needs and the first set is hers!

Vandeweghe working out some of her frustration.

Magnificent one-handed catch in the crowd. Muguruza goes 0-30 up but Vandeweghe responds excellently with a couple of terrific winners, perhaps buoyed by that gentleman's catch. She holds.

VANDEWEGHE 4-3 MUGURUZA BREAK!

Wow how long was that? Vandeweghe keeps getting break point and Muguruza keeps on saving it. It starts to feel as if we're locked in submission, with each player countering the other but as the pressure mounts Muguruza double faults and Vandeweghe now has a wonderful chance to take the first set if she can hold and break.

No need to save break point for Muguruza this time but it is still far from comfortable. She does hold though and we're still waiting for the first crack to appear in either of these players' games.

Another important hold from Muguruza when Vandeweghe had looked like she might break. That's three break points saved already for the Spaniard. She knows she's in a battle here.

Strong response from Vandeweghe to throwing away that first game as her big serve already comes into play. Terrific winners as well.

Strong start from Vandeweghe as she races into a 15-40 lead but Muguruza rallies really well and makes sure that she holds her first service game.