Serena Williams vs Victoria Azarenka live stream: Watch Wimbledon 2015 women's quarter finals tennis online

Serena Williams, the world's top female tennis player, is on a quest for a sixth Wimbledon title this year, but she needs to make it past 23rd seed Victoria Azarenka in the quarterfinal round to keep her dream alive.

Williams, 33, made it to the quarterfinals after winning in straight sets 6-4, 6-3 against older sister Venus in the fourth round of the tournament.

Serena has now won 15 of their 26 professional matches and their sixth Wimbledon meeting. "It's never easy to play someone you love and care about. You just play for the competition and enjoy the moment," Williams said. "It definitely doesn't get any easier"

Williams relished the moment of playing with her older sister and said: "I thought, 'I'm 33 and she's 35. I don't know how many more moments like this you're going to have'."

Venus also had the same sentiment and according to BBC Sports, she said: "We've played a lot of years and we've tried to be entertaining. We won't be playing forever, but clearly we're playing at a very high level now. When that moment is over, it will be over. It's not now."

Serena took the lead early in the match, but Venus stepped up to the challenge and even had the chance to tie it in the first and took the lead in the second. But the current world no. 1 was too tall for the task as she captured the win, setting her up for a date against Azarenka.

Azarenka, 25, made it to the quarterfinals after topping Switzerland's Belinda Bencic in straight sets 6-2, 6-3 Monday. Now the 23rd seed will again face Williams, who beat her in three sets during their most recent meeting at the third round of the French Open last May. Williams has the advantage in the match, as she has already won 16 of 19 matches against Azarenka. 

The match will be on Centre Court Tuesday, and will take place after the Sharapova vs Vandeweghe match, which starts at 1 p.m. BST (8 a.m. EST). The match can be watched online through live stream by clicking here.

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