Chris Guccione upset No. 7 Jo-Wilfried Tsonga on Wednesday. (Photo: Tom Guenther)
Jo-Wilfried Tsonga fires a serve in his first match of the 2009 tournament. (Photo: Tom Guenther)
Novak Djokovic, the 2008 runner-up, began his 2009 campaign Wednesday. (Photo: Tom Guenther)
Marat Safin leaves Center Court after a morning practice session. (Photo: Rita Payne)
Two-time Cincinnati champion Roger Federer opened his 2009 tournament on Wednesday.
No. 8 Nikolay Davydenko was one of seven Top 10 players in action Wednesday. (Photo: Rita Payne)
Guillermo Garcia-Lopez is making his debut in Cincinnati this year. (Photo: Lauren Justice)
Paul-Henri Mathieu reaches to play a backhand on Wednesday. (Photo: Lauren Justice)
Andy Murray began defense of his title on Wednesday. (Photo: Lauren Justice)
Rafael Nadal reacts during his match against Andreas Seppi on Wednesday (Photo: Eric M. Spohn)
Jeremy Chardy lines up a backhand in his match against John Isner on Wednesday. (Photo: Eric M. Spohn)
World No. 3 Rafael Nadal stretched for a ball on Thursday against Andreas Seppi. (Photo: Bob Payne)
Fans line the tunnel that players use to enter and exit Center Court with hopes of getting an autograph. (Photo: Lauren Justice)