McIlroy hits ancient stone -- and breaks PGA Tour employee's hand -- in eventful first Open round

Rory McIlroy has seen more than most during his decorated golf career, but even he won't have experienced many first rounds quite like the one he had at St Andrews on Thursday.

In pursuit of his second Open Championship title, the Northern Irishman made a scintillating start at the Old Course, draining a monster 55-foot putt on the opening hole to spark a roar from the grandstands.

Three consecutive pars followed, with the 33-year-old's fine opening looking set to continue with a powerful drive from the fifth tee. Yet, incredibly, McIlroy's speeding shot was prematurely grounded when it bounced into a stone in the middle of the fairway.