Jon Wertheim chats with longtime hitting partner to Serena Williams Sascha Bajin on what defines a hitting partner, how he met Serena Williams, his most recent partnership with Caroline Wozniacki, and more, on this week's episode of Beyond the Baseline Podcast! LISTEN here:

On the Beyond the Baseline Podcast, Tennis Channel Commentator and Sports Illustrated Executive Editor Jon Wertheim takes fans between the lines with tennis commentary and exclusive interviews with the top players and newsmakers on the ATP and WTA tours.On