Rafael Nadal will play for his 16th Grand Slam title after beating Juan Martin del Potro 4-6, 6-0, 6-3, 6-2 today.
The two-time US Open champion will face 28th-seeded Kevin Anderson of South Africa on Monday.
It was Nadal's 15th straight victory in a Grand Slam semi-final since del Potro beat him in 2009 at Flushing Meadows.
The Spaniard is in his third major final of the year.
He also won the French Open in June and will have a huge edge in experience against Anderson, a first-time Grand Slam finalist.