Sam Stosur in action during her first-round victory over Yanina Wickmayer at Roland Garros; Getty Images

Sam wins first up at Roland-Garros

PARIS, AAP – Sam Stosur powered into the second round at Roland Garros for the 12th straight year with a 6-2 6-4 victory over former US Open semifinalist Yanina Wickmayer on Tuesday.

Unseeded for the first time in Paris for the first time in a decade, Stosur clubbed 21 winners, five aces and broke Wickmayer five times in another typically strong start to her 15th Parisina campaign.

The veteran’s only lapse came when she dropped serve from 40-15 up at 4-2 in the second set.

But Stosur broke straight back before closing out the match after one hour and 27 minutes.

“I was happy with the match. It was pretty solid, I did what I wanted to do,” Stosur said.

“Yanina can be really dangerous, but overall I was really pleased with how I stuck at it and played today.

“At Grand Slams, there’s never usually too many straight matches where everything just goes your way and you don’t have to worry about anything.

“There’s those moments where you’ve got to fight through it. So, yeah, I’ll take it.”

The four-time semifinalist and 2010 runner-up next plays 30th seed Anastasia Pavlyuchenkova – her doubles partner in Paris – after the Russian beat Polona Hercog.

Should Stosur advance, a third-round showdown with 2016 champion Garbine Muguruza may loom large after the Spanish third seed also scored an impressive straight-sets victory over 2009 winner Svetlana Kuznetsova.