see more

BRISBANE, AUSTRALIA - DECEMBER 31: Jo-Wilfried Tsonga, Rafael Nadal, Andy Murray, Nick Kyrgios and Kei Nishikori pose during day two of the 2019 Brisbane International at Pat Rafter Arena on December 31, 2018 in Brisbane, Australia. (Photo by Chris Hyde/Getty Images)

BRISBANE, AUSTRALIA - DECEMBER 31: Jo-Wilfried Tsonga, Rafael Nadal, Andy Murray, Nick Kyrgios and Kei Nishikori pose during day two of the 2019 Brisbane International at Pat Rafter Arena on December 31, 2018 in Brisbane, Australia. (Photo by Chris Hyde/Getty Images)