Speaking on Thursday night, Sainz said: "I've had a very rough last 24 hours if I'm honest.

"I'm happy to manage to do this Thursday and complete the run plan, but it's for sure been one of my toughest days in a Formula 1 car in such a demanding high G-force [circuit]. I need some rest now."

His replacement Bearman is the nominated standby driver this weekend, having already been active in Jeddah in Formula 2. He will compete utilising #38 on his Ferrari. 

On Thursday the 18-year-old Briton secured pole for Prema after edging out Kush Maini.

As part of Ferrari's young driver academy Bearman has already conducted private testing for the Scuderia and made two impressive cameos for customer team Haas in FP1 for last year's Mexican and Abu Dhabi grands prix.

"I know I'd be ready to go, I know I have what it takes," Bearman said in Abu Dhabi at the prospect of being called up.

"Of course, preparation will be important. First of all, I have to do a good enough job to make that step one. But I have no doubt that if I get a call-up, I'm ready to go."

As part of F2's sporting regulations, drivers cannot compete in both F1 and F2 on the same grand prix weekend. Prema has therefore decided to withdraw Bearman's pole-winning car.

"While we are sad to withdraw the #3 car that was starting from pole at Jeddah, we are delighted to see Ollie make his F1 debut," Prema stated.

Sainz is the second driver in two years to get struck by appendicitis, with Williams driver Alex Albon ruled out of 2022's Italian Grand Prix with a similar issue