Defending champion Johnson out of US Open

World number one and defending champion Dustin Johnson bowed out of the US Open on Friday, with a one-over-par 73 not good enough to lift him past the cut line. 

The American favourite, who had struggled to a three-over-par 75 in the first round, carded three birdies and four bogeys. 

With the cut on another low-scoring day at Erin Hills coming at one over, Johnson seem poised to scrape into the weekend after three birdies and a bogey left him at two under, one over outright, midway through his round.

But three costly bogeys on the back nine left Johnson needing to pick up strokes down the stretch which proved beyond him.

Johnson's exit came after world number two Rory McIlroy and world number three Jason Day also missed the cut.