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Spieth confident grand slam is on with right prep

Jordan Spieth believes an unprecedented calendar grand slam is possible with the right preparation, although his will rely on a charter flight from Quad City International Airport.

Just two men have ever won three major championships in the same year, with Ben Hogan winning all three he played in 1953 only to be denied the chance to claim all four due to a clash of dates.

Hogan won the Masters by five shots and the US Open by six, but with the US PGA - then still a match play event - not finishing until July 7 in Michigan and the British Open starting a day later, he opted to travel to Carnoustie and secured his only British Open title by four shots.

In 2000, Tiger Woods won the US Open, Open Championship and US PGA before completing the 'Tiger Slam' in 2001 with victory in the Masters.

Spieth's thrilling US Open victory means he is halfway to making history, but in typical fashion, the 21-year-old will honour his commitment to play in the John Deere Classic in Silvis, Illinois before travelling to St Andrews.

"I plan to go there on a charter, the way I've done the last two years after the John Deere," said Spieth. "So I won't be there as early as I was for this major, but that's the same time I got in for the Masters; I got in late Sunday night to Augusta.

"We will go to St Andrews looking to win the Claret Jug. I believe we will be able to get the job done if we get the right prep in.

"I think it's in the realm of possibility. "This (Chambers Bay) was somewhat of a British-style golf course, so are the next two majors (St Andrews and Whistling Straits). I've proven to myself that I can win on a British-style golf course now. Now I take it to the truest British-style golf course of any in the world."