Rory in another final round fade-out
McIlroy, who squandered a four-shot lead at the Masters with a final-round 80, led by three shots at one stage during the rain-affected third round. But he shot a 72 in that round and a bogey at the 18th in the final round led to a 69, two strokes adrift.
Manassero, 17, holed a nine-iron for an eagle in his 68 and finished 16 under as the leaders played 27 holes on the final day following weather delays throughout the week.