Jordan Spieth has revealed that he is yet to make a final decision over his strategy for this year's Open Championship.

The 24-year-old claimed victory at Royal Birkdale 12 months ago, but this year's event at Carnoustie is expected to throw up a different challenge due to the firmness of the fairways and greens.

Spieth has suggested that he is excited by the test which awaits him but as of Monday lunchtime, the American had not played a single practice hole at the course.

"I haven't played one hole yet. I talked to a couple of my friends and they said it's extremely baked out. Michael said you might wear out your four or five irons off the tee instead of hitting three or two irons like you're used to," Sky Sports News quotes him as saying.

"Then you might kind of wear out your mid-irons, somewhere like six to nine irons if you play to the fat spots. I think a couple of longer hitters might take driver a little more because I don't think the rough's as bad but I'm not sure what my strategy will be yet. I'm sure it will be up there with the firmest conditions I've ever seen.

"I love links golf, I very much enjoy coming over here. The firmest might have been the Open at Muirfield [in 2013], the weather was perfect that week and it baked out but there wasn't much wind."

Spieth has never missed the cut on his five appearances at The Open.