![Monica Niculescu of Romania tries to catch her racquet during her women's singles match against Caroline Wozniacki of Denmark at the Australian Open tennis tournament in Melbourne January 20, 2012. REUTERS/Daniel Munoz ( Monica Niculescu of Romania tries to catch her racquet during her women's singles match against Caroline Wozniacki of Denmark at the Australian Open tennis tournament in Melbourne January 20, 2012. REUTERS/Daniel Munoz (](https://c8.alamy.com/comp/2CY8HW1/monica-niculescu-of-romania-tries-to-catch-her-racquet-during-her-womens-singles-match-against-caroline-wozniacki-of-denmark-at-the-australian-open-tennis-tournament-in-melbourne-january-20-2012-reutersdaniel-munoz-australia-tags-sport-tennis-2CY8HW1.jpg)
Monica Niculescu of Romania tries to catch her racquet during her women's singles match against Caroline Wozniacki of Denmark at the Australian Open tennis tournament in Melbourne January 20, 2012. REUTERS/Daniel Munoz (
![Caroline Wozniacki in action against Monica Niculescu during the Western & Southern Open on August 14, 2013 - Sports Mole Caroline Wozniacki in action against Monica Niculescu during the Western & Southern Open on August 14, 2013 - Sports Mole](https://sm.imgix.net/13/33/caroline-wozniacki.jpg?w=640&h=480&auto=compress,format&fit=clip)
Caroline Wozniacki in action against Monica Niculescu during the Western & Southern Open on August 14, 2013 - Sports Mole
![March 23, 2019: Caroline Wozniacki, of Denmark, plays a backhand against Monica Niculescu, of Romania, during a second round match at the 2019 Miami Open Presented by Itau professional tennis tournament, played March 23, 2019: Caroline Wozniacki, of Denmark, plays a backhand against Monica Niculescu, of Romania, during a second round match at the 2019 Miami Open Presented by Itau professional tennis tournament, played](https://c8.alamy.com/comp/2EMP0D4/march-23-2019-caroline-wozniacki-of-denmark-plays-a-backhand-against-monica-niculescu-of-romania-during-a-second-round-match-at-the-2019-miami-open-presented-by-itau-professional-tennis-tournament-played-at-the-hardrock-stadium-in-miami-gardens-florida-usa-mario-houbenphoto-by-mario-houbencsmsipa-usa-2EMP0D4.jpg)
March 23, 2019: Caroline Wozniacki, of Denmark, plays a backhand against Monica Niculescu, of Romania, during a second round match at the 2019 Miami Open Presented by Itau professional tennis tournament, played
![Wozniacki Frustrated With Niculescu | Sometimes She Goes "Ah!", And Then She Goes "Aaaaaahh" - YouTube Wozniacki Frustrated With Niculescu | Sometimes She Goes "Ah!", And Then She Goes "Aaaaaahh" - YouTube](https://i.ytimg.com/vi/BSQGvgkVDS8/sddefault.jpg)
Wozniacki Frustrated With Niculescu | Sometimes She Goes "Ah!", And Then She Goes "Aaaaaahh" - YouTube
![2018 Qatar Total Open Third Round | Caroline Wozniacki vs. Monica Niculescu | WTA Highlights - YouTube 2018 Qatar Total Open Third Round | Caroline Wozniacki vs. Monica Niculescu | WTA Highlights - YouTube](https://i.ytimg.com/vi/2YDithCMcck/maxresdefault.jpg)
2018 Qatar Total Open Third Round | Caroline Wozniacki vs. Monica Niculescu | WTA Highlights - YouTube
![Ben Rothenberg on Twitter: "Wozniacki started complaining about Niculescu's grunting when the first set started slipping away from her, then essentially accused Niculescu of gamesmanship in the on-court interview. Don't think that Ben Rothenberg on Twitter: "Wozniacki started complaining about Niculescu's grunting when the first set started slipping away from her, then essentially accused Niculescu of gamesmanship in the on-court interview. Don't think that](https://pbs.twimg.com/ext_tw_video_thumb/964194426313695233/pu/img/hFFGAhEojdNG0VFA.jpg)