Rafael Nadal has won the US Open beating Novak Djokovic in four sets.
He's become only the seventh man in tennis history to win all four of the big Grand Slam tournaments- Wimbledon, the French, Australian and US Opens.
The final was supposed to be played on Sunday but it was delayed because of rain, and more bad weather interrupted the game for two hours.
The world number one fell to the ground in celebration after winning the match, and getting a place in tennis history.
It took almost four hours for the Spaniard to get the 6-4 5-7 6-4 6-2 win.
Nadal joins Roger Federer, Andre Agassi, Roy Emerson, Rod Laver, Don Budge and Fred Perry as a player to have won all the Grand Slams.
Best in the world
His first US Open victory takes him to nine Grand Slam titles overall.
After the match, Djokovic said: "Right now he's the best player in the world and he absolutely deserves this title."