For the second straight year Serena Williams saw her bid for a seventh U.S. Open title halted in the semi-finals with a 6-2 7-6(5) loss to Karolina Pliskova on Thursday that also ended her long reign as world number one.
Serena Williams crashed out of the US Open after losing in the semi-final to Karolina Pliskova costing her a shot at a 23rd Grand Slam title and resulted in her losing her record 187th straight week at number one.
