![TORONTO, ON - AUGUST 09: Holger Rune of Denmark serves during his second round match of the National Bank Open, part of the Hologic ATP Tour, at Sobeys Stadium on August 9, TORONTO, ON - AUGUST 09: Holger Rune of Denmark serves during his second round match of the National Bank Open, part of the Hologic ATP Tour, at Sobeys Stadium on August 9,](https://l450v.alamy.com/450v/2rgj4fj/toronto-on-august-09-holger-rune-of-denmark-serves-during-his-second-round-match-of-the-national-bank-open-part-of-the-hologic-atp-tour-at-sobeys-stadium-on-august-9-2023-in-toronto-canada-photo-by-julian-avramicon-sportswire-icon-sportswire-via-ap-images-2rgj4fj.jpg)
TORONTO, ON - AUGUST 09: Holger Rune of Denmark serves during his second round match of the National Bank Open, part of the Hologic ATP Tour, at Sobeys Stadium on August 9,
![ATP Rankings: Carlos Alcaraz starts another week at No 1 as Holger Rune and Jannik Sinner hit career bests ATP Rankings: Carlos Alcaraz starts another week at No 1 as Holger Rune and Jannik Sinner hit career bests](https://d2me2qg8dfiw8u.cloudfront.net/content/uploads/2023/08/14124358/Jannik-Sinner-Toronto-champion.jpg)
ATP Rankings: Carlos Alcaraz starts another week at No 1 as Holger Rune and Jannik Sinner hit career bests
![Caroline Wozniacki trains with compatriot Holger Rune ahead of competitive return at Canadian Open 2023 Caroline Wozniacki trains with compatriot Holger Rune ahead of competitive return at Canadian Open 2023](https://staticg.sportskeeda.com/editor/2023/07/da8f8-16908048642310-1920.jpg?w=840)
Caroline Wozniacki trains with compatriot Holger Rune ahead of competitive return at Canadian Open 2023
![Alcaraz, Auger-Aliassime, Rune: Could a new 'Big Three' emerge at the Australian Open? | Sporting News Canada Alcaraz, Auger-Aliassime, Rune: Could a new 'Big Three' emerge at the Australian Open? | Sporting News Canada](https://library.sportingnews.com/styles/twitter_card_120x120/s3/2023-01/nba-canada--4bb5d3f2-1880-4d3b-be88-806c25e9f66b.jpeg?itok=Cz1axYd6)
Alcaraz, Auger-Aliassime, Rune: Could a new 'Big Three' emerge at the Australian Open? | Sporting News Canada
![Casper Ruud's Canadian Open loss aids Holger Rune's rise to career-high ranking; Dane to enter World's top 5 for the first time Casper Ruud's Canadian Open loss aids Holger Rune's rise to career-high ranking; Dane to enter World's top 5 for the first time](https://staticg.sportskeeda.com/editor/2023/08/da699-16917462539830-1920.jpg)
Casper Ruud's Canadian Open loss aids Holger Rune's rise to career-high ranking; Dane to enter World's top 5 for the first time
![ATP Rankings: Red-hot Holger Rune cracks top 10, Felix Auger-Aliassime at career-high, Alexander Zverev slumps ATP Rankings: Red-hot Holger Rune cracks top 10, Felix Auger-Aliassime at career-high, Alexander Zverev slumps](https://d2me2qg8dfiw8u.cloudfront.net/content/uploads/2022/11/03074158/Holger-Rune-antics.jpg)
ATP Rankings: Red-hot Holger Rune cracks top 10, Felix Auger-Aliassime at career-high, Alexander Zverev slumps
![Toronto, Canada. 09th Aug, 2023. Denmark's Holger Rune celebrates against United States' Marcos Giron during tennis action of the National Bank Open in Toronto, Wednesday, Aug. 9, 2023. Credit: The Canadian Press/Alamy Toronto, Canada. 09th Aug, 2023. Denmark's Holger Rune celebrates against United States' Marcos Giron during tennis action of the National Bank Open in Toronto, Wednesday, Aug. 9, 2023. Credit: The Canadian Press/Alamy](https://c8.alamy.com/comp/2RGJ38C/toronto-canada-09th-aug-2023-denmarks-holger-rune-celebrates-against-united-states-marcos-giron-during-tennis-action-of-the-national-bank-open-in-toronto-wednesday-aug-9-2023-credit-the-canadian-pressalamy-live-news-2RGJ38C.jpg)
Toronto, Canada. 09th Aug, 2023. Denmark's Holger Rune celebrates against United States' Marcos Giron during tennis action of the National Bank Open in Toronto, Wednesday, Aug. 9, 2023. Credit: The Canadian Press/Alamy
![Cincinnati: No. 5 Holger Rune, No. 6 Jannik Sinner, No. 7 Casper Ruud, No. 8 Andrey Rublev lose on same day Cincinnati: No. 5 Holger Rune, No. 6 Jannik Sinner, No. 7 Casper Ruud, No. 8 Andrey Rublev lose on same day](https://images.tennis.com/image/private/t_16-9_768/tenniscom-prd/y3terdbgt3xzeq5glgrx.jpg)
Cincinnati: No. 5 Holger Rune, No. 6 Jannik Sinner, No. 7 Casper Ruud, No. 8 Andrey Rublev lose on same day
![Alcaraz faces Rune threat as world no.1 begins bid for Canadian Masters title | Tennis News - Hindustan Times Alcaraz faces Rune threat as world no.1 begins bid for Canadian Masters title | Tennis News - Hindustan Times](https://www.hindustantimes.com/ht-img/img/2023/08/05/1600x900/F2jAnPyX0AAAj_y_1691237594635_1691237601016.jpg)
Alcaraz faces Rune threat as world no.1 begins bid for Canadian Masters title | Tennis News - Hindustan Times
![ATP Rankings: Rune joins No 1 Alcaraz inside the top-10, Tsitsipas jumps to No 3, Auger-Aliassime to No 6 ATP Rankings: Rune joins No 1 Alcaraz inside the top-10, Tsitsipas jumps to No 3, Auger-Aliassime to No 6](https://assets.tennismajors.com/uploads/2022/11/PANORAMIC_246949_0032-1296x675.jpg)
ATP Rankings: Rune joins No 1 Alcaraz inside the top-10, Tsitsipas jumps to No 3, Auger-Aliassime to No 6
![Félix Auger-Aliassime is the best tennis player in the world for the month of October - The Globe and Mail Félix Auger-Aliassime is the best tennis player in the world for the month of October - The Globe and Mail](https://www.theglobeandmail.com/resizer/0tGgoBDVINUkYCxNOc9JM9n2YbU=/600x0/filters:quality(80):format(jpeg)/cloudfront-us-east-1.images.arcpublishing.com/tgam/PQLTUW2RBFKNBAQI4ENLD3II2A.jpg)
Félix Auger-Aliassime is the best tennis player in the world for the month of October - The Globe and Mail
![TORONTO, ON - AUGUST 09: Holger Rune of Denmark reacts after the second set during his second round match of the National Bank Open, part of the Hologic ATP Tour, at Sobeys TORONTO, ON - AUGUST 09: Holger Rune of Denmark reacts after the second set during his second round match of the National Bank Open, part of the Hologic ATP Tour, at Sobeys](https://c8.alamy.com/comp/2RGJ4HN/toronto-on-august-09-holger-rune-of-denmark-reacts-after-the-second-set-during-his-second-round-match-of-the-national-bank-open-part-of-the-hologic-atp-tour-at-sobeys-stadium-on-august-9-2023-in-toronto-canada-photo-by-julian-avramicon-sportswire-icon-sportswire-via-ap-images-2RGJ4HN.jpg)