RIYADH, Saudi Arabia (AP) — Top-ranked Aryna Sabalenka put on a dominant serving display in her opening match at the WTA finals, producing 10 aces in a 6-3, 6-1 win over No. 8-ranked Jasmine Paolini on Sunday.

Sabalenka served four aces in the final game of the first set alone and overall put 82.7% of her first serves in play.

The match, which was Sabalenka’s 500th at the WTA level, lasted 70 minutes.

“I was focused, I was calm and it felt like everything was in control,” Sabalenka said.

On Saturday, Sabalenka was presented with a trophy for finishing the year at No. 1.

“I’m super happy and super proud of the work that has been done and that things are working and I’m getting better and better every day,” she said. “And I just hope that we’re going to keep doing what we’re doing and h

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