RORY MCILROY threw his club and smashed a tee box as he vented his anger during a difficult second round at the US Open.
The Masters champion narrowly made the cut but it was another day of frustration at Oakmont.

Rory McIlroy endured a frustration afternoon at Oakmont[/caption]
He flung his club and smashed up a tee box[/caption]
McIlroy narrowly made the cut after a birdie on the 18th hole[/caption]
McIlroy, 36, finished on six over but made it through thanks to a birdie on the 18th hole.
Defending champion Bryson DeChambeu was not so fortunate after finishing ten over, with those on eight over failing to make the cut.
McIlroy was in danger of falling short too, and appeared as though he would let his frustrations get the better of him.
A wayward approach shot on the 12th saw the Northern Irishman fling his club in anger.
And on the 17th hole the tee box took a beating from McIlroy as the five-time major winner was again unhappy with his drive.
That prompted the Sky Sports commentator to say: “Oh wow. Frustration once again boils over.
“He’s not himself right now.”
Fans were not impressed with McIlroy’s behaviour and criticised his conduct.
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One reacted saying: “Time for sanctions for this behaviour. Once per round OK but second means a one shot penalty?”
Another added: “What happened to Rory. Sore sport lately.”
And a third wrote: “Frustration? More like a temper tantrum.”