WTA legend Jennifer Capriati posed with Victoria Azarenka and Serena Williams ahead of the US Open final.
Serena Williams was tipped as the favorite, going in with a 9-1 head-to-head record against the World No.1.
And early it looked like Serena Williams' title to lose, as she stormed through the opening set, 6-2.
But Victoria Azarenka was nowhere near done - there's a reason she's ranked No.1 in the world right now...
Victoria Azarenka broke straight out of the gates in the second set as the momentum of the match did a 180.
Serena Williams dropped the second set, 6-2, and went down an early break in the third. Things looked grim.
Celebrities like Kevin Spacey and former tennis greats like Boris Becker watched it all unfold from the stands.
Tyra Banks, who was tweeting her support for Serena Williams during the match, was also in the crowd.
There were celebrities aplenty as one of the great tennis champions of our era dug deep to find a way to win.
And like she had done so many times before, Serena Williams found a way to win against an inspired opponent.
Serena Williams won four games in a row from 5-3 down in the third set to pull off a miracle 62 26 75 victory.
Even Serena Williams couldn't believe it as she dropped to the ground after claiming her 15th Grand Slam title.
Serena Williams leapt into the air after the final, which was by far her toughest match of the tournament.
Serena Williams didn't lose a set in her first six matches - she barely even lost any games, just 19 total.
Serena Williams rushed to her packed player box. Among those cheering her on was fellow great Venus Williams.
Victoria Azarenka showed the agony of defeat at her chair after coming so close to another major title.
But the shotmaking and fight she showed made it clear why she's World No.1 with a lot of majors in her future.
Victoria Azarenka, Serena Williams
Serena Williams has by far the most Grand Slam titles among active players - Venus Williams is next with seven.
Serena Williams posed for photographers with her new trophy before heading back for the ensuing media blitz.