Argentina's Agustin Calleri returns a ball during a quarter final match against Germany's Michael Berrer at the Mercedes Cup tennis tournament in Stu - Foto

Argentina's Agustin Calleri returns a ball during a quarter final match against Germany's Michael Berrer at the Mercedes Cup tennis tournament in Stu - Freitag 11. Juli 2008, 16:32 Uhr
ttgart, southern Germany, on Friday, July 11, 2008.