Delev 3-4* Mustard
Despite being a break down, Delev is really putting the pressure on Mustard here. Delev hits winners off two of his serves to move to 30-0, but blows a chance to go to 40-0 as he sends a backhand long. He's not happy and challenges it via Hawkeye, but the linesperson was right to start with. Finds a bit of gusto in that second serve at 40-15 to take the game dropping just one point.
From Rob, Melbourne, via text: "Both players should utilize the lob shot a little more one feels. Ah Tennis during the day nothing beats it!" Absolutely right, Rob. Good to see you are following us here because no doubt Channel 7 is currently showing the Sounds of the Game instead of any live tennis!
Delev *3-5 Mustard
Heating up on the All Purpose Arena, but Mustard is still doing enough to fight off Delev. Probably could say this was a missed opportunity for Delev who had looks at two second serves and might have broken, but Mustard is doing well to keep in points with his accurate shots. He gets to 40-15 with a trademark serve and volley, but Delev is able stay in range as he draws an error from Mustard. Doesn't matter, though, as Jojo picks the perfect time to serve his first ace of the match to force Delev to serve to stay in the set.
Delev 4-5* Mustard
And Delev stays alive in the set! He's really going for the lines to try to intimidate Mustard, here, and serves two aces - one at 211 km/h! Mustard gets just the one points this game - a double fault no less - and is forced to serve it out at 5-4.
Heath Davis on Twitter: "Mustard playing really well at the moment. I should also be preparing for a match tonight, but I'm not. LOL Come on El Mustardo!"
Delev *4-6 0-0 Mustard
Real chance for Delev here as he steps inside of a second serve from Mustard to crack a forehand winner across court to move to 15-30. Again, though, Mustard does well under pressure to fire down an ace and then another unreturned first serve to bring up one set point. That's all he needs as Delev sends a backhand into the net after a fifteen shot rally to hand the 29th seed the first set!