After beating Petra Kvitova and Maria Sharapova this weekend, Serena Williams is once again No. 1 in women’s tennis.

Even though Azarenka beat Serena, her No. 1 tenure was short-lived.

I think we’re going to have a real fight on our hands. Perhaps a good old-fashioned rivalry is just what the WTA needs right now, and who better than Serena Williams in one corner and Victoria Azarenka in the other?

By the way, Serena Williams, age 31, is now the oldest No. 1 ever. She joins Federer in proving that with age comes wisdom and even more strength.

If Serena Williams and Victoria Azarenka meet again, who do you think will come out on top?