By Larry Fine
Showing no signs of slowing down in his first grand slam tournament as a 30-year-old, Federer used his serve as a lethal weapon, whipped angled winners with his groundstrokes and played superbly at the net.
The third-seeded Federer advanced to a scintillating showdown in the last four against top-seeded Novak Djokovic and his eighth straight U.S. Open semi.
"I played great," Federer said in an on-court interview. "For me it continues, and that is awesome.
"I'm very happy with the way I'm playing, the way I'm moving and I'm enjoying myself on the court."
(Editing by Julian Linden)