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SYDNEY, AUSTRALIA - JANUARY 12: Dusan Lajovic of Serbia plays a backhand during his final singles match against Roberto Bautista Agut of Spain during day 10 of the ATP Cup at Ken Rosewall Arena on January 12, 2020 in Sydney, Australia. (Photo by Matt King/Getty Images)

SYDNEY, AUSTRALIA - JANUARY 12: Dusan Lajovic of Serbia plays a backhand during his final singles match against Roberto Bautista Agut of Spain during day 10 of the ATP Cup at Ken Rosewall Arena on January 12, 2020 in Sydney, Australia. (Photo by Matt King/Getty Images)