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WIMBLEDON (CBSMiami) – A year ago, Serena Williams made an early exit at Wimbledon – losing in the third round. But in 2015 she was the last woman standing, and now on the brink of tennis history.

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Williams took to London’s famous court like a Queen coming to collect what belongs to her.

And when the ball was in play it was clear Williams wasn’t playing around.

Her groundstrokes were intimidating.

Her court-covering defense was hypnotic, and of course there was that famous battle cry.

Despite eight double faults, Williams’ 120-mph returns were too fast for her opponent, Spain’s Garbine Muguruza.

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With the 6-4, 6-4 victory, comes another big win.

Williams now holds the world’s four Grand Slam titles in a single year – an achievement dubbed the “Serena Slam.”

Now she has her sights set on the U.S. Open.

“I’ve done well in New York so far, but worst case scenario I have another Serena Slam,” she said.

Williams has an impressive overall record 21-4, including 6-2 at Wimbledon and just one Grand Slam win shy of Steffi Graf.

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If Williams does in fact win at the U.S. Open, it will be the first time a player sweeps all four majors in the same the season since Graf accomplished the feat in 1988.