The first round of the 88th Masters has been delayed by at least an hour due to bad weather at Augusta National.

South Africa’s Erik van Rooyen was due to hit the opening tee shot at 8am local time (1300BST), but rain was already falling when tournament officials announced at 5am that play would not get under way on time.

“We continue to monitor the weather closely,” an official statement read.

“Gate openings and tee times have been delayed until further notice. The first round will not begin before 9 a.m.”

Thunderstorms, heavy rain and winds gusting up to 45mph were all forecast for Thursday.

England’s Tommy Fleetwood has been drawn in the final group in round one for the second successive year, but he will not let the uncertain weather affect his preparations.

“I generally wake up and take the weather for what it is, just go out and play with the conditions we get, but I’ve heard the forecast is pretty bad,” Fleetwood, who is without long-time caddie Ian Finnis this week due to illness, said.

“The conditions are going to play a part in how the golf course plays and what happens there, so we’ll see.”

Scottie Scheffler intends to keep the secrets of Masters success to himself as he bids to justify his position as pre-tournament favourite with a second green jacket.

The 2022 champion has been in brilliant form this season, winning the Arnold Palmer Invitational by five shots and seven days later becoming the first player to win back-to-back Players Championship titles at Sawgrass.

Only a short missed birdie putt on the 72nd hole of the Houston Open cost Scheffler the chance of a third straight win and the world number one has rightly been made favourite for the 88th Masters at the kind of odds last seen for Tiger Woods at his prime.

Scheffler’s victory two years ago was aided by a yardage book given to him by Ben Crenshaw’s former caddie Carl Jackson, who worked at Augusta National for 54 years.

Crenshaw arranged a meeting between the pair as bad weather delayed the pre-tournament par-three contest and, four days later, Scheffler secured his first major title by three shots, despite four-putting the 72nd hole.

“I’m not going to expand too much on Carl’s secrets in front of people but it was my third Masters and I sat in the back of the caddie house with Carl,” Scheffler said.

“Ben had suggested that I just sit down with him for a few minutes and he gave me a yardage book that had some of where I think he called it grain is, where some of the slopes are.

“And it’s just a yardage book that has some arrows in it. (But) I’m not going to tell you where the arrows are pointing.

“It’s something that I’ll kind of review at night and I always look at it in the lead-up to the tournament just because there is kind of some weird stuff that goes on around the golf course.”

Rory McIlroy insists it was an “easy decision” to potentially forfeit £2.4million in bonus money as he spoke for the first time about how missing the cut in the Masters “sucked”.

McIlroy did not speak to waiting reporters after a second round of 74 at Augusta National brought a premature end to his latest bid to win a green jacket and complete the career grand slam.

The world number three then withdrew from the RBC Heritage at Hilton Head, meaning he had missed his second ‘designated event’ of the year on the PGA Tour and was subject to losing 25 per cent of his Player Impact Program bonus.

“We certainly have our minimums, we obviously signed up for this designated-event series this year,” McIlroy said at a promotional event for FedEx ahead of the Wells Fargo Championship.

“I obviously knew the consequences that could come with missing one of those. It was an easy decision, but I felt like, if that fine or whatever is to happen, (it) was worth that for me in order to get some things in place.

“I had my reasons not to play Hilton Head. I expressed those to Jay [Monahan, the PGA Tour commissioner] and whether he thinks that is enough to warrant… look, again, I understood the consequences of that decision before I made it.

“So whatever happens, happens.”

McIlroy revealed that he had allowed himself to think about his prospects of becoming just the sixth player to have won all four major titles after shooting five under par on the back nine of his Wednesday practice round at Augusta.

“Me thinking that way isn’t a good thing,” the four-time major winner said. “All I should be thinking about is that first shot on Thursday.

“You need to stay in the present moment and I feel like at Augusta I didn’t quite do a good job of that because of how well I came in playing. I maybe got ahead of myself a little bit.”

Describing his performance, McIlroy added: “It sucked. It sucked.

“It’s not the performance I obviously thought I was going to put up. Nor was it the performance I wanted. Just incredibly disappointing. But I needed some time to regroup and focus on what’s ahead.

“It’s been a big 12 months and I don’t know if I fully reflected on stuff. I never really got a chance to really think about the Open and St Andrews (where he was joint leader after 54 holes) and everything that went on there.

“It was nice to have three weeks to just put all that stuff in the rearview mirror and just try to focus on what’s ahead.”

What’s ahead on the course includes the US PGA Championship later this month and July’s Open Championship at Hoylake, where McIlroy lifted the Claret Jug in 2014.

And McIlroy hopes he will now be able to expend less energy on his role as an unofficial spokesperson for the PGA Tour in its battle against LIV Golf as the season progresses.

“I wasn’t gassed because of the golf, I was gassed because of everything that we’ve had to deal with in the golf world over the past 12 months and being right in the middle of it and being in that decision-making process,” McIlroy added.

“I’ve always thought I’ve had a good handle on the perspective of things and where golf fits within my life, but I think over the last 12 months I’d lost sight of that, lost sight of the fact that there’s more to life than the golf world and this silly little squabble that’s going on between tours.

“And I think once I disconnected from it a little bit, I could see things a little clearer and where everything fits. I guess that was a good reset.”