PHOTO OF THE DAY Sweden's Andreas Vinciguerra works to return the ball to Argentina's Franco Squillari at Roland Garros on Thursday. No. 16 seed Squillari defeated Vinciguerra 2-6, 6-3, 6-3, 6-1. GRAND SLAM SNIPPETS Before Galo Blanco upset Pete Sampras at the French Open in straight sets Thursday, Blanco endured a slump last season and was starting to lose his appetite for the game. He says his improvement this year is because of his new coaching team of Gabriel Urpi and Alvaro Margets. "I've changed by coach, my practice partner and my fitness trainer," he said."I wouldn't say I was thinking about quitting the game but I wasn't enjoying it so much, going out there thinking I would lose. "I now look at things in a different way. I'm enjoying training and the coaches have made me believe that I can go higher. There's no limit in my mind." Chilean Marcelo Rios once again bagged the most unwanted prize at the French Open when he was announced as winner of the notorious "Prix Citron" on Thursday. The booby prize is awarded to the most difficult and miserable player on the professional tour following a vote by tennis journalists. Rios has won it in five of the past six years, though he missed out 12 months ago to Russian Yevgeny Kafelnikov. France's Arnaud Clement won the Prix Orange after being voted the most pleasant player on the international circuit. Yugoslav Jelena Dokic took the Prix Bourgeon, Blossom Prize, for being the most promising personality. Rios, a former world No. 1, made the headlines earlier this month when he was fined $10,000 by the ATP for his behavior during the Rome Masters tournament. Rios, 25, was ejected from a players' party in the Italian capital and is due to stand trial for allegedly resisting arrest and attacking two policemen later in the evening. Ninety-eight lost children were escorted to Roland Garros officials on Kids Day at the French Open on Wednesday. It is a French Open record in the Modern Era. It's a dog's life If dogs are a man's best friend it also would appear they make excellent company for women tennis players. On Thursday at the French Open the travel itinerary of the pets owned by Williams sisters Venus and Serena was being ruthlessly probed by the world's media after Serena's second-round victory against Slovenian Katarina Srebotnik. Following the routine questions about form and the match, it was down to the serious business of canine relations. Who was that perky little mutt on a purple lead watching Serena with her father, Richard Williams? "That was my dog," Serena said. "Her real name is Byla Jackie but everyone calls her Jackie. She prefers to be called Jackie. That one's mine. She's a Jack Russell. "Actually she has a birthday coming up on June 11. She'll be two." Serena is relying on her dad and Jackie for company at Roland Garros after sister Venus flew back to the United States with her dog, Bob, following her surprise first-round exit. "Bob left this morning -- I miss Bob a lot," said Serena, pointing out that they will reunited at home with Pete, the family's third dog. "Pete is usually the one that travels," she said. "Pete has a broken heart right now." AROUND ROLAND GARROS There's no place like grass: Pete Sampras is likely to accept a wild card to play in the Stella Artois grass-court championships at London's Queen's Club next month, the seven-time Wimbledon champion said on Thursday. The winner of a record 13 Grand Slam titles had not been on the entry list for the traditional pre-Wimbledon warm-up event, but after losing in the second round of the French Open to Spain's Galo Blanco he may have changed his plans. "I guess there's a good chance I'll probably play Queen's," the American said. "I hadn't really been thinking about it but I probably will play now." Sampras has won the Queen's tournament four times. Unlikely bedfellows: The Williams sisters found an unlikely ally on Thursday following their controversial decision to pull out of the French Open doubles tournament. Top seed Martina Hingis said it was quite understandable that Venus Williams would want to return home after the second seed's shock first-round singles exit on Monday. "If you lose the first round I think you don't want to stay around much longer," Hingis said after her second-round victory over Catalina Castano on Thursday. Hingis was more critical of the apparent lack of clay-court preparation put in by the Williams sisters. "I think it's difficult if you haven't played that many matches to go into a clay tournament -- just come basically out of nowhere, no match experience, then play good tennis," Hingis said. "It may be different on hard court. That's what they're used to. On clay you have to be more patient." 10 Burning Questions: Page 2 talked to actors Jane Kaczmarek of "Malcom in the Middle" and Bradley Whitford of "The West Wing" the husband and wife celebrity spokesteam for USA Tennis Month, which ends today. OVERHEARD PETE SAMPRAS On his second-round loss at Roland Garros: "There's still time. I've got plenty of years left. But as the years go by it gets more and more difficult. I'll try to figure it out and maybe try something different." ARANTXA SANCHEZ-VICARIO On the crowd booing her: "I threw the racket because I was just so disappointed. Maybe the crowd didn't like it. They can't understand that us players have feelings, too." SERENA WILLIAMS On rumors of a rift between the sisters: "Family is important. It lasts longer than a sport. "Five, 10 years from now, I'll be gone, there will be someone else. But she'll still be my sister."