| By Long Island Tennis Magazine Staff

Yesterday was a day of upsets at the BNP Paribas Open at the Indian Wells Tennis Garden in Indian Wells, Calif. as top players on both the men's and women's sides of the draws were beaten. In the men's draw, second-seeded Novak Djokovic, who was the top-seed remaining after Roger Federer was defeated a day earlier, was knocked out of the tournament, losing in straight sets 7-5, 6-3 to the 20th seeded Ivan Ljubicic of Croatia in his fourth round match. 

Only Rafael Nadal, the number three seed, remained as the favorite and he didn't disappoint, with a 7-5, 3-6, 6-3 win over American John Isner. Nadal, who has just returned after being out six weeks with a leg injury, is going after his third career title at the event. He played well, overcoming Isner's big serve, as well as the crowd who was clearly behind the American Isner. Nadal now advances to the quarterfinals where he'll meet 19th-seeded Tomas Berdych of the Czech Republic.

Andy Roddick stayed perfect against Jurgen Melzer, making it 10 straight match wins against him, by defeating Melzer 7-6, 6-4. He will now face Tommy Robredo in the quarterfinals. Robredo advanced by knocking off Marco Baghdatis who couldn't follow up his big upset win against top-seeded Roger Federer earlier in the week.

On the women's side, fourth-seeded Elena Dementieva was upset 6-4, 6-3 in the quarterfinals by fifth-seeded Agnieszka Radwanska. Radwanska took advantage of Dementieva's struggles and remained hot in this tournament still having not dropped a set in four matches.

Second-seeded Caroline Wozniacki also almost became an upset victim herself, but she rallied to beat 18th-seeded Zheng Jie of China, 6-4, 4-6, 6-1 for the first time in her career and advanced to the women's semifinals.