Memphis, TN (SportsNetwork.com) - Reigning champion Kei Nishikori was a come-from-behind quarterfinal winner, while former world No. 1 star Lleyton Hewitt was an upset victim Friday at the U.S. National Indoor Championships tennis event.
Seeded No. 1 at an ATP event for the first time in his career, the rising Japanese star Nishikori fought back to beat Russian Alex Bogomolov Jr. 3-6, 6-3, 6-2 in 2 hours, 18 minutes on Day 5 at The Racquet Club of Memphis.
"It wasn't easy today," Nishikori said. "My tennis level is not quite 100 percent yet, so I hope I can get better. I have a lot of confidence and my goal is to win the tournament."
Nishikori topped Spaniard Feliciano Lopez in last year's Memphis finale.
Meanwhile, 35-year-old American journeyman Michael Russell upended the third- seeded Hewitt, who will turn 33 in less than two weeks, 6-3, 7-6 (8-6).
Russell is rewarded with a semifinal bout against Nishikori on Saturday.