Tokyo - Fourth seed Kristyna Pliskova, twin sister of world
number one Karolina, fired down 14 aces to see off Taiwan's Chang Kai-chen in
straight sets Monday in the Japan Women's Open.
The Czech, a wildcard entry to the $250 000 Tokyo
tournament, came through her first-round match 7-5, 7-5 despite a sluggish
start in humid conditions.
"My serve helped me today," said Pliskova, who
holds the record for the most aces in a match on the women's WTA Tour with 31.
"It's always tough after a Grand Slam - you don't know
how you will feel," added the 25-year-old world number 41.
It was her first match since being edged out 7-6, 7-6 in the
second round of the US Open in New York to Slovakia's Magdalena Rybarikova.
Pliskova next faces either Japan's Nao Hibino or a qualifier
for a place in the quarter-finals of the hard-court event.
Third seed Elise Mertens progressed with little fuss, the
Belgian beating Russian Evgeniya Rodina 7-6, 6-1 while China's Wang Qiang saw
off Taiwan's Hsieh Su-wei 7-5, 6-2.
Much of the focus Tuesday will switch to Japan's Kimiko
Date, playing in her final tournament just short of her 47th birthday.
The former world number four faces Serbian Aleksandra
Krunic, at 24 comfortably young enough to be her daughter.