MIAMI GARDENS, Fla. – Roger Federer finished with a wave of ace and went on to the fourth round of the Miami Open beating Filip Krajinovic, 7-5, 6-3, on Monday.
In the last match, Federer hit the first three points. An ace from the next point was knocked down by a replay and Krajinovic gave up the last shot on goal.
Federer finished with 14 aces and moved away after converting only one of his first eight chances of breaking points.
Fourth-seeded, Federer improved to 14-2 this year. He made his debut in Miami 20 years ago and won the tournament in 2005, 2006 and 2017, when he was played on Key Biscayne.
On the women's side, Bianca Andreescu, who just won at Indian Wells, pulled out of her fourth round match due to a right shoulder injury while Anett Kontaveit was 6-1, 2 -0. The three-time Miami champion, Venus Williams, sank 6-3, 6-3 to world No. 2 seed Simona Halep. No. 3 Petra Kvitova scored just one point and defeated Caroline Garcia 6-3, 6-3.
Andreescu, an 18-year-old Canadian tied for the WTA lead with 20 first-leg victories this year, said she was feeling pain and feeling stiff in the shoulder.
"I have played so many games," she said. "I guess it's just the way my body tells me he's tired of it. The doctor said it was nothing serious, but the pain is there. "
Andreescu announced that she would miss the tournament next week in Charleston, S.C., but was planning to play the Fed Cup on April 20 and 21.
She called a medical break after the first set to receive treatment, and received similar treatment during her third round win over Angelique Kerber, who then told Andreescu that she was "the greatest queen of drama of the world ".
Andreescu defeated Kerber in the BNP Paribas Open final at Indian Wells on March 17 for his first career title. Monday's injury ended her bid to become the fourth woman to win two consecutive wins at Indian Wells and Miami.
"I am very upset," she said. "But I really can not complain about what I've accomplished."
Kontaveit, seeded number 21, was joined in the quarter-final by Miami, Kvitova, ranked No. 2 in career and reaching number 1 if she wins the title. Naomi Osaka, who is currently No. 1, lost to Hsieh Su-wei in the third round.
Kvitova's match against Garcia was interrupted by the rain for over 90 minutes and she took advantage of it.
"I did a little nap, which was really helpful," Kvitova said.