She's on her way.

Serena Williams has overcome a difficult start to defeat Frenchwoman Pauline Parmentier 6-3 6-4 in her first round match at the ASB Classic.

Her hotly anticipated debut didn't disappoint, Williams displaying all of the power, precision and skill that has kept her on the top of the sport for so long.

But it was nowhere near one-way traffic. Williams had a patchy start, broken in her first service game and slipping to a 3-1 deficit.

Advertisement

In her first match since last September, there was always going to be some rust and maybe even some nerves for the veteran American.

She wasn't helped by blustery conditions on centrecourt, with the ball kids struggling to hold umbrellas up during the change of ends.

"It was my first match back in several months, I was playing a really good player today and this wind was getting to me," said Williams.

"Every day, I've practiced here, it's been no wind, and, of course, today I play and it is so windy.

"It was fun...[well] it wasn't fun, actually. it was interesting.

"I'm feeling like I am trying to get there. Obviously, every match counts."

And as normally happens in such situations, world No.70 Parmentier raised her game. The Frenchwoman, who has never been past the fourth round of a Grand Slam, at times looked like a world-beater.

She served well and often matched the American, stroke for stroke.

Williams was broken in the first game of the match, after being down 0-40 at one point. The American lost the next game - to love - as Parmentier found her serving range early.

However, to the obvious delight of the near sell-out crowd, Williams eventually kicked into gear.

From 3-1 down, the 35-year-old won five successive games to take the set, mixing up vicious serves and returns with some silky drop shots.

Williams broke early in the second set - and looked to be on the downhill slope to the finish - but Parmentier showed impressive resistance. She broke back midway through the set, as Williams looked for guidance from her coach sitting courtside.

Williams fended off three break points in the crucial sixth game, unleashed a booming cross-court winner to hold for 3-3 and then broke Parmentier in the next game.

The 22-time Grand Slam winner had to fight until the end, saving two break-point opportunities in her next service game, but eventually prevailed in 76 minutes. ​