Published 11:41 p.m. ET January 19, 2018 | Updated 11:42 p.m. ET January 19, 2018
Tennis Channel recaps Day 4 at the Australian Open, where No. 3 seed Garbine Muguruza and No. 9 Johanna Konta lost when temperatures broke in three digits.
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Halep saved three match points while serving in the 22nd game of the third set at 0-40, and Davis saved five break points in the next game to keep the bout alive.
The third set took 2 hours and 22 minutes and, after wasting three previous chances to get the game, Halep converted his first match point when Davis hit a right hand.
Davis, number 76, had two medical downtimes in the match. third game for blisters on both feet.
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"It was definitely a very difficult game, that long," said Halep, who reached the final twice at the French Open, but never won a Grand Slam title. "I never played the third set for so long, so I'm very happy to stay and win it, I'm almost dead."
"I feel like my muscles are gone, my ankle is, I do not know how it is because I no longer I'm sorry, but it was nice to be on the court, it was nice to win this game. "
Davis did his best to stay in the game, keeping long live rallies to put pressure on Halep.
He finished with approximately twice as many winners (52-27) against slightly more than twice the unforced errors (73-39) and broke Halep's serve six times.
Halep will play the winner of Saturday's final match between local hope Ashleigh Barty and Naomi Osaka.
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