Teenagers Iga Swiatek and Coco Gauff claimed opening wins in the first round of the Adelaide International today, Swiatek beating Madison Brengle and Gauff ousting Jasmine Paolini.

Swiatek converted all three of her break points in her 73-minute 6-3, 6-4 win over qualifier Brengle.

But Gauff was made to work a little harder, forced to three sets as she overcame her Italian opponent 6-4, 6-7(4), 6-2.

Iga Swiatek knows tennis life has changed since her French Open win. Tennis Australia/ NATASHA MORELLO

“I tried to calm myself down, stay low in the legs, and sometimes play longer rallies to get in the rhythm, because the first round is always tough at any tournament,” Swiatek said.

She added that life had changed since she won the French Open last October.

“Inside I’m the same person, but I realise that everybody’s kind of treating me differently, so it’s something you have to adjust to, and also keep yourself down to earth and the same as you were,” she said.

Coco Gauff was taken to three sets by Jasmine Paolini in Adelaide. Photo: Tennis Australia/ JAY TOWN

“We did a great job last year and hopefully this season will also be successful. But tennis-wise, it also changes that I’m not an underdog anymore, so I start my matches with a different attitude around, and that’s the kind of thing you have to learn to do.”

In other matches, sixth-seed Petra Martic defeated Ludmila Samsonova 4-6, 6-0, 7-5 and Jil Teichmann beat Kristina Mladenovic 6-2, 7-6 (5).

Top-ranked Ash Barty received a wild-card entry and plays American Danielle Collins in a second-round match tomorrow.