'Can't believe it': Ash Barty suffers meltdown in US Open shocker
World No.1 Ash Barty was unable to close out the match against American Shelby Rogers and has been knocked out of the US Open in the third round.
The World No.1 entered the match as the strong favourite, but quickly fell behind after an uncharacteristically poor start.
WOW: Piers Morgan savaged after reigniting Naomi Osaka row
SAD: Naomi Osaka in tears before bombshell admission after US Open loss
'NEVER SEEN THIS': Tennis world shocked as crowd turns on Osaka
Despite holding such a strong record against the American this year, Barty played one of her worst sets of tennis in some time after serving five double faults and hitting 17 unforced errors.
The American ran away with the set 6-2 in 35 minutes.
Remarkably, the commentators pointed out Barty was able to 'flick a switch' during the set break and come out to take the second set in barnstorming fashion.
Barty then took a 5-2 lead in the final set and had two opportunities to serve out the match.
But, her struggles serving for the win continued and Rogers broke twice to send the decider into a tiebreak.
And after a some high-quality baseline hitting from both opponents, Rogers was able to earn the mini-break and win 6-2, 1-6, 7-6 to set up a showdown with British teen sensation Emma Raducanu.
Barty showed her usual class when greeting her opponent at the net, but the tennis world was left utterly shocked at the World No.1's horror collapse in the final set.
While the World No.1's serving was pinpointed as one of her secret weapons leading into the US Open, closing the match on serve ultimately was her downfall.
Shelby Rogers, down 2-5 in the final set roars back for a 62 16 76(5) upset over world No.1 Ashleigh Barty.
She can't believe it - nor can Ash, I wouldn't think.
Arthur Ashe Stadium is LOSING ITS MIND. What a performance from a player who's been thru so much #USOpen— Nick McCarvel (@NickMcCarvel) September 5, 2021
Unreal comeback from Shelby Rogers. She earns he 1st win over No.1 Ashleigh Barty in their 5th match of the year, coming back from a double-break down to win 62 16 76(5).
Played an incredibly disciplined match and unwound Barty at the baseline.
Faces Emma Raducanu.#USOpen— WTA Insider (@WTA_insider) September 5, 2021
For the second time in this match, Ash Barty fails to serve out the match. Now 5-all in the 5th with the New York crowd ready to rumble https://t.co/KbDumfNhKD
— Christopher Clarey (@christophclarey) September 5, 2021
American Shelby Rogers has taken out No. 1 Ashleigh Barty tonight in upset. Or are there any upsets in parity-laden women’s draw?
— Marc Berman (@NYPost_Berman) September 5, 2021
WOW.
Shelby Rogers comes back from 2-5* in the 3rd set to upset the world number one Ash Barty 6-2, 1-6, 7-6(5) and reach the last 16 at the #USOpen.— José Morgado (@josemorgado) September 5, 2021
Barty 🇦🇺 nearly there
First set to forget and looks like she is heading to a match with Emma Raducanu 🇬🇧 which will be a great experience for the British teenager— Chris Goldsmith (@TheTennisTalker) September 5, 2021
Emma Raducanu stuns tennis world
Rogers will now face British teen Raducanu.
The 18-year-old Raducanu, who burst onto the scene earlier this year by reaching the fourth round at Wimbledon in her first Grand Slam appearance, was utterly dominant against Spain's Sara Sorribes Tormo, closing out the one-sided match 6-0, 6-1 in 70 minutes.
The rising star became the youngest British woman to advance to round four of the US Open since 2012.
Raducanu, who came to New York ranked 150th in the world, has breezed through all three of her matches without dropping a set and won a hugely impressive 79 per cent of her first-serve points while smashing 23 winners past her hapless opponent.
Click here to sign up to our newsletter for all the latest and breaking stories from Australia and around the world.