English golfer Ian Poulter believes that the USGA are a 'disgrace' for not apologising for the conditions of the greens at Chambers Bay for the US Open.

Jordan Spieth sealed his second major of the year by claiming victory in Washington, but a main talking point was the dry surface of the greens.

A number of golfers criticised the conditions over the weekend, with Billy Horschel admitting that he has "lost some respect" for tournament organisers USGA.

Poulter vented his anger on Instagram by posting a lengthy message alongside a picture of the green, which he described as the worst surface that he has ever seen in his career.

The 39-year-old's message read: "Mike Davis the head of the @USGA unfortunately hasn't spoke the truth about the conditions of the greens. I feel very sorry for the hundreds of greens staff who spent countless hours leading into this week and this week doing there best to have it the best they could and I thank them for that. But look at the picture. This was the surface we had to putt on.

"It is disgraceful that the @USGA hasn't apologized about the greens they simply have said. 'we are thrilled the course condition this week'. It wasn't a bad golf course, In fact it played well and was playable. What wasn't playable were the green surfaces. If this was a regular PGA tour event lots of players would have withdrawn and gone home on Wednesday, but players won't do that for a major. They were simply the worst most disgraceful surface I have ever seen on any tour in all the years I have played. The US Open deserves better than that.

"Simply not good enough and deeply disappointing for a tournament of this magnitude. I don't like it when people lie on camera to try and save face. And to all you fans that paid good money to try and watch us play golf but couldn't see anything on most holes because it wasn't possible to stand on huge slopes or see around stands, I apologize and I'm sorry you wasted your money traveling to be disappointed. I hope we all learn something moving forward to not have these problems in the future."