Jon Rahm made his carer breakthrough in 2017 with three wins, including his first, and a climb to world-number-four.

Now third in the world, Rahm is out in California preparing to defend his Farmers Insurance Open title by sitting atop the CareerBuilder Challenge leaderboard.

But despite his rapid success the Spaniard is already looking to improve in the new year.

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Rahm’s major results last year read tied 27th, missed cut, tied 44th and tied 58th. He insists that is not good enough.

“I want to play a little better in the majors. I don’t know why last year things didn’t happen in the majors,” Rahm said.

“Maybe it was the few weeks a year that I played bad, but hopefully I’ll play good on those weeks and maybe see if I can get in contention in one of them.

“Besides that, try to keep things going, try to keep playing good and hopefully have a better year than I did last year.”

2018 has started brightly for Rahm with a second-place finish at the Sentry Tournament of Champions but he is anxious about defending his Torrey Pines title next week.

“Oh man, I’m really trying not to think about next week. I’m feeling good. Really good.

“I feel like those five weeks off after Dubai not doing much was really good for my body,” he said. “Trying to take things real easy, make sure I’m rested for the year.

“There will probably be a year in the future where I do go to Dubai and maybe not play [the early-year California events].

“In my case, this is way too much fun to give up.”

Rahm tees off his second round around the Nicklaus Tournament Course at PGA West looking to consolidate his lead at 10:20am local time.