So unbeatable for so long until the closing days of Grand Slam tournaments, Roger Federer is suddenly accumulating early exits. Federer's streak of nine consecutive quarterfinals at the French Open ended Sunday with a 6-7 (5), 7-6 (3), 6-2, 4-6, 6-3 fourth-round loss to 18th-seeded Ernests Gulbis of Latvia. ''A lot of regrets,'' Federer said. After that decade-old setback, though, Federer made at least the quarterfinals at a record 36 consecutive major tournaments, a streak that ended with a second-round loss at Wimbledon last year. More...