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MELBOURNE, AUSTRALIA - JANUARY 22: Jiri Lehecka of the Czech Republic celebrates victory in the fourth round singles match against Felix Auger-Aliassime of Canada during day seven of the 2023 Australian Open at Melbourne Park on January 22, 2023 in Melbourne, Australia. (Photo by Andy Cheung/Getty Images)

MELBOURNE, AUSTRALIA - JANUARY 22: Jiri Lehecka of the Czech Republic celebrates victory in the fourth round singles match against Felix Auger-Aliassime of Canada during day seven of the 2023 Australian Open at Melbourne Park on January 22, 2023 in Melbourne, Australia. (Photo by Andy Cheung/Getty Images)

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MELBOURNE, AUSTRALIA - JANUARY 22: Felix Auger-Aliassime of Canada plays a backhand during the fourth round singles match against Jiri Lehecka of the Czech Republic during day seven of the 2023 Australian Open at Melbourne Park on January 22, 2023 in Melbourne, Australia. (Photo by Cameron Spencer/Getty Images)

MELBOURNE, AUSTRALIA - JANUARY 22: Felix Auger-Aliassime of Canada plays a backhand during the fourth round singles match against Jiri Lehecka of the Czech Republic during day seven of the 2023 Australian Open at Melbourne Park on January 22, 2023 in Melbourne, Australia. (Photo by Cameron Spencer/Getty Images)

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MELBOURNE, AUSTRALIA - JANUARY 22: Jiri Lehecka of the Czech Republic plays a backhand during the fourth round singles match against Felix Auger-Aliassime of Canada during day seven of the 2023 Australian Open at Melbourne Park on January 22, 2023 in Melbourne, Australia. (Photo by Cameron Spencer/Getty Images)

MELBOURNE, AUSTRALIA - JANUARY 22: Jiri Lehecka of the Czech Republic plays a backhand during the fourth round singles match against Felix Auger-Aliassime of Canada during day seven of the 2023 Australian Open at Melbourne Park on January 22, 2023 in Melbourne, Australia. (Photo by Cameron Spencer/Getty Images)

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MELBOURNE, AUSTRALIA - JANUARY 22: Felix Auger-Aliassime of Canada plays a backhand during the fourth round singles match against Jiri Lehecka of the Czech Republic during day seven of the 2023 Australian Open at Melbourne Park on January 22, 2023 in Melbourne, Australia. (Photo by Mark Kolbe/Getty Images)

MELBOURNE, AUSTRALIA - JANUARY 22: Felix Auger-Aliassime of Canada plays a backhand during the fourth round singles match against Jiri Lehecka of the Czech Republic during day seven of the 2023 Australian Open at Melbourne Park on January 22, 2023 in Melbourne, Australia. (Photo by Mark Kolbe/Getty Images)

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MELBOURNE, AUSTRALIA - JANUARY 22: Jiri Lehecka of the Czech Republic plays a backhand in the fourth round singles match against Felix Auger-Aliassime of Canada during day seven of the 2023 Australian Open at Melbourne Park on January 22, 2023 in Melbourne, Australia. (Photo by Andy Cheung/Getty Images)

MELBOURNE, AUSTRALIA - JANUARY 22: Jiri Lehecka of the Czech Republic plays a backhand in the fourth round singles match against Felix Auger-Aliassime of Canada during day seven of the 2023 Australian Open at Melbourne Park on January 22, 2023 in Melbourne, Australia. (Photo by Andy Cheung/Getty Images)