Billie Jean King, eat your heart out. Or your legacy.

It's not exactly Serena Williams versus Andy Murray, but Li Na is on the cusp of facing Novak Djokovic in a some-sort-of-historic "Battle of the Sexes" redux match. Serena, Victoria Azarenka, and Rafael Nadal are also taking part in the exhibition event, which coincides with the China Open's 10th-anniversary tournament.

What's your take on this promotion—transparent PR plug or viable entertainment?

Says here it'll be scads and oodles of fun ... especially if Li and Novak are miked. Seriously, between this pair of personalities, imagine the possibilities.

Got a thought, a tip, or a point to make? Hit me on Twitter @jonscott9.