The USTA released renderings this afternoon of the new roof that will be built for Arthur Ashe Stadium. The USTA said it's "likely" it'll be ready by 2017. There will also be a grand renovation of the entire U.S. Open tennis campus in Queens. It'll cost $550 million. That'll include a new Louis Armstrong Stadium and a new Grandstand. Each will have a roof. Here's a rendering of the new Grandstand, with Arthur Ashe in the background: