Alexander Lazov Pictures
SYDNEY, AUSTRALIA - JANUARY 03: Gregor Dimitrov and Alexander Lazarov of Bulgaria both go for a return in during their Group C doubles match against Jamie Murray and Joe Salisbury of Great Britain during day one of the 2020 ATP Cup Group Stage at Ken Rosewall Arena on January 03, 2020 in Sydney, Australia.during day one of the 2020 ATP Cup Group Stage at Ken Rosewall Arena on January 03, 2020 in Sydney, Australia. (Photo by Mark Metcalfe/Getty Images)