Venus Williams hugs sister serena after a US Open 4th round match in which Venus beat sister to advance to quaterfinals.

Far from a family feud, matches between Venus and Serena Williams create a family crisis. This time neither of their parents could watch. Artistry gave way to sheer slugging again in Sister Act XIV, the ongoing saga of siblings who hate to play each other - especially if it's not for a Grand Slam title.

Venus' 7-6 (5), 6-2 victory Sunday to reach the quarterfinals at the US Open evened their head-to-head matches at 7-7 and gave the elder sister her second win this year after losing six straight to Serena.

Venus bottled up her emotions, not her power, and could hardly manage a smile when it was over. Serena Williams shrieked and bounced her racket before limping off, angry at herself and achy.

It was the ninth time they met in a Grand Slam match, and the earliest since Venus won the first clash in the second round of the 1998 Australian Open. Serena had won their last five matches in majors - all in finals.

"Serena is the baby so she's going to do her little tantrum," said older sister Lyndrea, the only immediate family member watching at courtside. "You kind of want to pull for her because she is the baby. It's hard but I had to be there for them."

The 25-year-old Venus, who won her third Wimbledon two months ago and is going for her third US Open title, could see that Serena, three weeks shy of 24, was struggling to control her shots and temper. 
  

(Agencies)