Jelena Jankovic must have wondered whether she would ever reach a Grand Slam final but the 23-year-old Serb finally achieved her goal here last night. Putting aside the memory of four semi-final defeats, Jankovic beat Elena Dementieva 6-4, 6-4 to reach the final of the US Open. She will play Serena Williams, who beat Dinara Safina 6-3, 6-2 in the other semi-final.