Serena Williams' quest for an elusive 24th Grand Slam title was put on hold again as she lost to Victoria Azarenka in the semi-finals of the US Open.
It was Azarenka's first victory over Williams at a Grand Slam tournament after 10 previous defeats, including the final at Flushing Meadows in 2012 and 2013.
The 38-year-old Williams needed treatment and heavy strapping for an Achilles injury and, despite winning the first set easily, she eventually succumbed to a 1-6, 6-3, 6-3 defeat.
Azarenka will now face Naomi Osaka in the final. The Japanese former champion beat Jennifer Brady in three sets.