Rory McIlroy was at his brilliant best on day one at St Andrews for the 150th Open with a sparkling round of 66.
A birdie at the last sent McIlroy off to sign his card with a real pep in his step and the odds on the pre-tournament favourite have dropped further with the Holywood man around 7/2 now.
It's McIlroy's best opening round at the Open since his Major success at Royal Liverpool in 2014.