The only person capable of beating former world No. 1 Jelena Jankovic is Jelena Jankovic, says Jelena Jankovic. The tennis world's reigning queen of whine lost the first of her round-robin matchesearlier this week to Victoria Azarenka at the season-ending Sony Ericsson Championships and, in her customary fashion, gave no credit to her opponent:"I basically gave her everything. I beat myself. That was really unfortunately the case. My game was completely off. I would hit one or two ba...