The 25-year-old Russian became only the 10th woman to win all four Grand Slams throughout her decorated career.
“It’s surreal. It’s the most unique moment I’ve experienced in my career. I never thought I would have that,” she said. “When I won Wimbledon at 17, I thought that would be the most treasured moment of my career.
“But when I fell down on my knees today, I realised that this was extremely special, and even more.”
Despite the impressive achievements of winning all major Slams and becoming world number one again, Sharapova insisted she had much more in her.
“It’s a long journey. It started from a very young age. It’s not over yet. I’m not sitting here and saying I’m done because I’m far from it,” she said.
“I have a lot more in me to achieve. I believe in my game.”