Five everyday items have been banned from being brought to the course on 2025 Ryder Cup opening day due to an impending visit by US President Donald Trump.
President Trump is a well-known golf fan and owns 15 courses worldwide.
Since his second stint in the Oval Office began in January, according to Golf365, his golf trips have cost the US taxpayer over £53 million.
Trump regularly plays alongside celebrities and famous sportspeople - as well as a number of golf stars who will be competing at Bethpage Black, New York, over the next three days.
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Team USA's Bryson DeChambeau called on Trump to 'inspire' the hosts to victory, and added: "I think he'll be a great force for us to get a lot of people on our side ... It's going to be an electric environment."
Trump is set to make an appearance towards the end of day one, which got underway at around 7am local time.
It is his second appearance at a major sporting event in the past month, with the President having attended the US Open tennis final between Carlos Alcaraz and Jannik Sinner.
Security arrangements caused major delays to fans entering the arena, and the start time of the final had to be pushed back by 37 minutes.
Trump was then booed by sections of the crowd at the Arthur Ashe Stadium when he appeared on the big screen - though this was, perhaps predictably, denied by the White House.
At the Ryder Cup, fans have been prohibited from bringing in certain everyday items due to security reasons, with US Secret Service officers also in attendance.
As per The Telegraph, golf fans have not been allowed to enter Bethpage Black with portable folding chairs or large umbrellas - with a small risk of rain for later in the day.
Laptops or tablets and metal or hard plastic beverage containers are among the other banned items.
Has Trump spoken about the Ryder Cup?
Despite his love for golf, Trump has not yet released an official statement about this year's Ryder Cup on social media.
His White House press secretary, Karoline Leavitt, did claim last week that Trump had prevented the event from being cancelled, as he stopped a possible train strike from taking place.
"This event is one of the greatest sporting events in the world and it would not be taking place this year without President Trump's help," she said on Sunday.
"President Trump signed an executive order last week preventing a strike that would have crippled the New York City area ahead of the tournament and at the request of the five labor unions who all represent workers on the Long Island Rail Road."
Topics: Ryder Cup, Golf, Donald Trump
Ryan Smart