#Djokovic losing his cool a little (as well as his racquet) as Karlovic keeps the 2nd a tight 4-3. #Doha #tennis pic.twitter.com/t6Pxqvfa1m— TennisTV (@TennisTV) January 8, 2015
#Djokovic losing his cool a little (as well as his racquet) as Karlovic keeps the 2nd a tight 4-3. #Doha #tennis pic.twitter.com/t6Pxqvfa1m