* Calf injury forces Sharapova out of Italian Open
* Fire at electric substation in Moscow, no threat to power supply
WORD
* 'Taliban' free kidnapped Pakistan envoy to Afghanistan
* Death toll in China earthquake approaching 30,000
* Ahmadinejad sacks Iranian interior minister
* Naples residents attack firemen extinguishing blazing garbage
* Bush and Mubarak discuss Israeli-Palestinian peace efforts
* Spanish police detain notorious hacker group
* Russian rescuers call off search for quake survivors in China
