IN PICTURES: Is Jordan Spieth the coolest man in sport?

World number two Jordan Spieth may be chasing an unprecedented single-season grand slam, but he does not seem to be feeling the effects of the pressure at St Andrews just yet.

The 21-year-old already has the US Masters and Open titles in the bag this year and goes in search of the third leg in the Open championship on the Old Course this week.

He arrived in Scotland yesterday fresh from winning the John Deere Classic in Illinois and was out practising late in the afternoon with fellow American Daniel Berger.

But after a long trans-Atlantic flight it was all fairly relaxed, with Spieth throwing himself to the turf and rolling on his back when he missed a putt on the fifth green.