PETROVA TO SEMIFINAL.

NUSA DUA, 12/9 - PETROVA ADVANCED. Russian Nadia Petrova serves to Italian Francesca Schiavone during the quarter-finals of Commonwealth Bank WTA Tour tennis tournament in Nusa Dua, Bali, September 12, 2008. Petrova advanced to the semi final after defeating Schiavone 6-4, 6-3. FOTO ANTARA/Nyoman Budhiana/Koz/ama/ox/08.