Novak Djokovic fell to a shock defeat in the Swiss Indoors semifinals Saturday, as Kei Nishikori of Japan beat the top-ranked Serb 2-6, 7-6 (4), 6-0. “It's unbelievable,” said the 21-year-old Japanese. “In the second set I started playing well and getting a rhythm.” Djokovic was twice treated for pain in his right shoulder after having his service broken, but praised Nishikori as a deserved winner. Djokovic dropped to 68-4 this year, with two of his losses the result of injury retirements. Roger Federer will need to do his homework to get ready for the final with Nishikori. “He's a guy I've never played, first I have to find out about his game,” said Federer after booking his place through a 7-6 (7/5), 6-2 defeat of compatriot Stanislas Wawrinka. Del Potro upset Marcel Granollers beat sixth-seeded Juan Martin del Potro 6-4, 7-6 (4) Saturday to advance to his second consecutive final at the Valencia Open. Del Potro started well on the indoor hard-court, but Granollers took control through his serve-and-volley game to win. Defending champion David Ferrer played the unseeded Juan Monaco in the other semifinal. The 34th-ranked Granollers, who won his second ATP title in July, lost to Ferrer in last year's all-Spanish final. Del Potro's exit meant Czech player Tomas Berdych locked up his place among the top eight players for the season-ending ATP World Tour Finals.
