World number one and 17-time Grand Slam winner Serena Williams has said that her sister Venus Williams is the greatest and that any one who is about to quit should get motivation from her.
According to TennisWorldUSA.org, Serena said this after her elder sibling stunned the second ranked player and two-time Australian Open champion Victoria Azarenka in straight sets 6-2, 6-4 in the second round of Pan Pacific Open in Tokyo on Tuesday.
Venus Williams has been suffering from auto-immune disease for quite some time now but did not show any sign of weakness in her match against the Belarusian player, the report said.
There is no doubt in the fact that Williams sisters love each other a lot as they have been always watching each other's matches from the player box, the report added.
They have also partnered to win 13 Grand Slam titles and 3 Olympics Gold Medals in doubles event, the report further said.