Rory McIlroy: Spieth deserves to be World No 1

Rory McIlroy admitted Jordan Spieth deserved to replace him as world number one following the US PGA Championship at Whistling Straits.

McIlroy carded a closing round of 69 to finish nine under par and alone in 17th, but lost his place at the top of the rankings after Masters and US Open champion Spieth finished second behind Jason Day.