Rory McIlroy has built a record that would seem to make him immune from too much skepticism about his game.
He already had four majors at age 25, including the U.S. Open scoring record (268) and the largest margin of victory (eight shots) in the PGA Championship. In the 30 years of the world ranking, Tiger Woods, Greg Norman and Nick Faldo are the only players who have spent more time at No. 1 than McIlroy.
Over the long Labor Day weekend, McIlroy managed to answer three big questions.
He had a reputation for playing his best golf in pristine conditions, strange for a kid who grew up in Northern Ireland.
But when the TPC Boston was at its most dangerous in 40...