Matteo Viola of Italy returns the ball to Tobias Kamke of Germany during the Qatar ATP Open Tennis tournament in Doha, Qatar, Monday, Dec. 31, 2012. (AP Photo/Osama Faisal)

 

              Matteo Viola of Italy returns the ball to Tobias Kamke of Germany during the Qatar ATP Open Tennis tournament in Doha, Qatar, Monday, Dec. 31, 2012. (AP Photo/Osama Faisal)
Matteo Viola of Italy returns the ball to Tobias Kamke of Germany during the Qatar ATP Open Tennis tournament in Doha, Qatar, Monday, Dec. 31, 2012. (AP Photo/Osama Faisal)