Rory McIlroy admits frustration after mixed fortunes at WGC-Cadillac Championship in Doral

Rory McIlroy produced a round of two halves in signing for a one-over par 73 on the opening day of the WGC-Cadillac Championship at Trump National Doral in suburban Miami.

McIlroy failed to post a birdie in an outward half of 40 that included two bogeys and a ninth hole double when he found water with his second shot.

The four-time Major winner headed to his back nine having found four of seven fairways and also recording 17 putts.