In one of the first pre-US Open marketing stunts, Polo Ralph Lauren and Mercedes Benz are hosting a live video chat and “tennis clinic” with Venus Williams starting at 2 PM ET. This is the second year the companies will be hosting the chat, which it calls “The Legends Clinic.”

Williams will be answering questions live from the tennis court, presumably so she can show, and not just tell, if she gets asked for tips.

For Polo and Mercedes, the chat gives exposure to their products. A quick look at the page where the chat will be held shows large and glamorous photos of attractive people in polo shirts, as well as some very expensive rides. There is also a Venus Williams dress, 15% of the proceeds of which will go to charity, according to Polo.

Interested fans can chat with Venus and get some advice on their backhand at 2 PM here.