Rory McIlroy storms into halfway lead at US PGA

World number one Rory McIlroy grabbed the halfway lead at the US PGA after a four-under-par 67 at Valhalla. Northern Ireland's McIlroy is nine under par after two rounds, one shot clear of Australia's Jason Day (65) and American Jim Furyk (68). via Pocket http://ift.tt/1ye3kWy