...and by Big 4, I'm talking about the Big 4 of the past decade, Serena, Justine, Venus and Kim.
Notable players who
are were close to achieving it:
JJ (now that Justine is gone, she will never achieve that feat
Na (same as JJ, but never had the chance to face Juju in her career
Bepa (yup, Justine also denied her that feat)
Daniela (only Kim stands in her way so she can still make it)
Jelena Dokic (needs a win against Serena)
Big 4's notable bitches:
Caroline Wozniacki - she ended as No.1 for two seasons but has yet to score a single win against any of them
Ana Ivanovic - scored only once against Venus at AO, but that's it
Agnieszka Radwanska - same as Ana, scored a fluke win against Venus
I no longer had to include Martina, Lindsay and Amelie.