
Rory McIlroy made no apologies for showing flashes of frustration even as he made an excellent start to his bid for a fifth major title in the 122nd US Open.
McIlroy carded a three-under-par 67 at Brookline to share the early clubhouse lead with England’s Callum Tarren, Sweden’s David Lingmerth and American Joel Dahmen, with defending champion Jon Rahm returning a 69.