1. 1. Serena Williams celebrates during Madrid Open (AP Photo/Daniel Ochoa de Olza)

2. 2. Serena Williams celebrates during Madrid Open (AP Photo/Daniel Ochoa de Olza)

3. 3. Serena Williams celebrates during Madrid Open (AP Photo/Daniel Ochoa de Olza)

4. 4. Serena Williams celebrates during Madrid Open (AP Photo/Daniel Ochoa de Olza)