World No. 1 Rafael Nadal and world No. 2 Novak Djokovic took to the courts on Friday at the ATP Cup. Here are the Top 5 Photos from January 4. (All photos by Getty Images)


Rafael Nadal played under the lights in Perth, helping Spain ease its way to a 3-0 win over Georgia. 


Nadal's efforts were made easier thanks to Roberto Bautista Agut's 6-0, 6-0 demolition of Georgia's Aleksandre Metreveli.


Team Italy enjoyed a day off with coffee and photo-ops at The Cheeky Sparrow in Perth. 


Also having a day off in Perth, Team U.S.A. threw the honorary pitches at the Harley Davidson Ballpark.


Novak Djokovic picked up his first win of 2020 over Kevin Anderson, clinching Serbia's win over South Africa.