Tennis-Serena begins marathon with exhausting first step
By the time Williams arrived on court to face her 72nd ranked opponent, she was the highest seed left in the women's draw after number one Karolina Pliskova and number two Sofia Kenin lost their opening matches on Sunday.
And Williams needed to draw on all her experience and survival instincts to ensure she did not join them at the exit as Rus put the former world number one through a near three-hour workout.
It marked the first exhausting day in what could be a three-week tennis marathon for Williams, who will be hoping her long search to win an elusive 24th grand slam title -- and equal Margaret Court's record tally -- will end on Sept. 12 with victory in the U.S. Open final.
On Monday, down 6-5 in the third set and with Rus serving for the match, a drained Williams looked down for the count but she picked herself up to break the Dutchwoman to force a deciding tiebreak. She then moved in for the kill to win it 7-0.
After working her way into the main draw through qualifying, Rus came in match sharp while Williams looked sluggish on a hot and humid New York afternoon. She spent much of the first set trying to tame a misfiring forehand.
While Williams fitness has been questioned, her fighting spirit has never been in doubt and never more than in the third set.
(Reporting by Steve Keating in Toronto, Editing by Pritha Sarkar)
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