Spectators were barred from Monday's practice rounds at the PGA Championship as severe weather hit Quail Hollow Club in Charlotte, North Carolina.
The PGA of America announced the full closure of the grounds to fans due to expected thunderstorms and heavy rainfall.
Up to two inches of rain was forecast for Monday, prompting officials to take precautionary measures.
The second men's major championship of the year is still scheduled to begin on Thursday as planned, with players permitted to practice despite the closure to spectators.
PGA Championship fans were not allowed in at Quail Hollow due to the weather
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The PGA of America has offered flexible arrangements for affected ticket holders.
Fans with Monday tickets will be able to use them for practice rounds on either Tuesday or Wednesday instead.
Championship+ ticket holders can also attend on either of the next two days.
Parking passes issued for Monday will remain valid for Tuesday and Wednesday practice sessions.
The decision has drawn criticism from some fans on social media, with several expressing disappointment about the closure.
Weather forecasts indicate rain and thunderstorms may continue into Tuesday, with showers also possible on Wednesday morning.
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From Wednesday onwards, Quail Hollow is expected to receive lower rainfall as conditions gradually improve.
The tournament days from Thursday through Sunday should see better weather, though a risk of afternoon showers remains.
Sunday's final round is anticipated to be warm and dry, according to forecasts.
The main competition is scheduled to take place from 15-18 May, with the opening round beginning at approximately 7 a.m. on Thursday.
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Quail Hollow will host the PGA Championship this week
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This marks the second consecutive major tournament where Monday practice rounds have been affected by inclement weather.
Last month at the Masters, fans were sent home early as heavy rains created a washout situation.
Players at both tournaments were still permitted to practice, weather conditions permitting.
The PGA Championship follows a similar pattern to what occurred at Augusta National, with organisers prioritising safety amid severe weather threats.
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The weather has played a big part at the PGA Championship already
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Players were still allowed to practice on the course despite the spectator ban, with the only restriction being potential lightning in the area.
The world's top golfers, including defending champion Xander Schauffele and Masters winner Rory McIlroy, continued their preparations for the tournament.
McIlroy enters the championship in strong form, having won three times this year including his recent Masters triumph.
Scottie Scheffler, the world number one, also arrives at Quail Hollow fresh off a victory and is seen as the main challenger to McIlroy.
