Rory McIlroy grew up in Holywood, Northern Ireland, and learned to play golf at Holywood Golf Club. I visited and took the "McIlroy Tour."

McIlroy is working on fumes after heading directly from the Scottish Open to his Open practice round on Monday

PORTRUSH, Northern Ireland — Rory McIlroy was younger and less seasoned mentally than he is now. He had no idea what to expect when he stepped to the first tee in the opening round of the 2019 British Open at Royal Portrush, a golf course in Northern Ireland located 60 miles from his boyhood home on which he set the course record as a 16-year-old.