American Jordan Spieth has won the Masters, becoming the second-youngest champion at Augusta National.

The 21-year-old Spieth carded a final round of two-under-par 70 on Sunday to finish four shots clear of Justin Rose and Phil Mickelson.

Spieth is the youngest person to win at Augusta since Tiger Woods in 1997.

He finished with a score of 18-under-par 279, matching the Masters tournament record Woods set that year.