Rory McIlroy stumbles in US Open first round as JJ Spaun strides into lead

McIlroy four over after bruising finish to opening roundSpaun ends with one-stroke lead over Thriston LawrenceThere was a Thursday spell when it felt as if Oakmont had poked the bear. Rory McIlroy was two under par, he had fired a drive 392 yards; it seemed the Masters champion had his mojo back. McIlroy has been in uncharted, strange psychological territory since completion of the career grand slam at Augusta National in April.Oakmont and the US Open then jabbed back in the manner only Oakmont