Serena Williams produced a superb performance in a stunning new outfit at Melbourne Park to beat Germany’s Laura Siegemund 6-1, 6-1 in just 56 minutes.

Williams wore a modernised version of a previous ensemble, more colourful and one-legged, to overcome a first game setback to march into the second round.

“This was a good start,” Williams said.

“It’s definitely good. I think I’m pretty good at pacing myself in a Grand Slam.”

Serena Williams. Photo: Tennis Australia

Meanwhile, sister Venus made her 20th appearance at Melbourne Park with a thrilling win over Belgian Kirsten Flipkens 7-5 6-2.

“Oh, my gosh, great. Winning is always fun. Never easy,” the 40-year-old elder sister said.

“She’s definitely tricky. We’ve had some great battles in the past, as well.”