The one new element to the @serenawilliams team has been the addition of @rennaestubbs from @racquetmag The straight shooting Aussie got her player ready to play and shook up the @usopen. Have a look at “Ambush Tennis” to see what she can do for recreational players and let us know what you think. Directed by @cshaptennispod Full video at the link in bio. #usopen #serenawilliams #tennis #stubbsy #yelling