Tour semis beckon for Klaasen
It is effectively a quarterfinal for them as they take on tournament fourth seeds Marc Lopez and Feliciano Lopez, with the winner going into the semifinals.
“We still very much alive in this tournament having won on Monday,” said Klaasen.
“Mentally we need to be prepared for Friday and the round-robin system gives winners and losers a chance, so each match is key.”
King William’s Town-born Klaasen and American Ram started the year-ending top eight tournament by beating current world number one doubles team Pierre-Hugues Herbert and Nicolas Mahut of France in the first round.
They then followed that up by going down to the in-form fifth seeds Henri Kontinen of Finland on John Peers of Australia, 6-3, 6-4 in their second match on Wednesday.