Serena Williams Aussie Open 2015
Serena Williams after winning the sixth Australian Open and 19th overall grand slam of her career Saturday night in Melbourne. Reuters

Jubilant and acting as like she just won the first slam of her career, Serena Williams trounced Maria Sharapova 6-3 7-6 (5) to claim her sixth straight Australian Open final Saturday night in Melbourne.

Overcoming a severe cold, Williams locked up the 19th grand slam singles title of her career, surpassing Americans Chris Evert and Martina Navratilova and sitting behind Steffi Graf for third all-time.

The 33-year-old is also now the oldest to ever sew up an Aussie women’s championship.

In 18 career meetings, Williams has notched 16 victories over the Russian Sharapova, and fired off 15 of her 18 aces in the winning set.

However, Williams was a bit confused and started her celebration prematurely. Holding her third match point, Williams fired off a serve and thought it was an ace and began celebrating only to have it called out.

Williams rifled off an actual ace on her very next serve.

"I thought, `Wow this is it, I did it, only to hear let. I was like, `OK Serena!" Williams said to the Associated Press. "I was very disappointed, because Maria was playing so well. I thought she's going to try to hit a winner now. She's goes for broke on match point."

Rain slightly hindered the first set, but Williams managed to win the first six points, did the same in the second set and largely coasted throughout the match.

Check out highlights below.

Serena Williams vs Maria Sharapova - FINAL...by footballdailytv