Jordan Spieth has revealed that he would feel "frustrated" if he didn't achieve a second Major trophy in 2015.

In April, Spieth dominated the field to win The Masters, but despite the significance of securing his first Major crown, the American has admitted that is eager to build on his famous triumph at Augusta.

The 21-year-old told reporters: "I have a chance to make history in many ways, but in order to do that, I have to really focus on this week, focus on the Major championships and how I'm going to prepare for them. There are certainly a lot of goals left for the year.

"It's never even crossed my mind to let it kind of sink in that it's been a great year, and that it would be a great year at the end. If I didn't do anything the rest of the year, I'd be pretty frustrated at the second half."

Spieth has registered a total of nine top-10 finishes in 15 tournaments since the start of the year.