Watch List: Serena returns to action in Bastad, ATP heads to Newport

The Watch List highlights the must-know storylines for the upcoming week in tennis. Just one day after the conclusion of Wimbledon 2015, the men head to Newport, R.I., for the Hall of Fame Tennis Championships, while No. 1 and Wimbledon 2015 champion Serena Williams is back in action in Bastad, Sweden, and Sara Errani is the top seed on red clay in Bucharest, Romania.