Crowd erupts at UFC 287 after they spot Donald Trump at ringside next to Mike Tyson and Dana White

Former US president Donald Trump was given an incredible reception by fight fans inside the Miami-Dade Arena on what turned out to be a memorable Saturday night.

The 76-year-old made a surprise guest appearance at UFC 287 as the company hosted their first event in Miami for 20 years.

And during the action, those inside the 19,000 capacity stadium made some serious noise for the 45th president of the United States, who stood up to thank fans for their support. You can see that moment below.

Masvidal also retired from UFC, saying: "I don't feel the same when I get in here no more. I love all of you. Thank you everybody for watching. This is where I started my career.

"Sometimes your favorite basketball player ain't got that three-pointer no more, your favorite quarterback loses that rifle. It's been 20-something years. I'm a multi-millionaire. I had nothing when I started. I'm out."

In terms of the packed UFC 287 card, Israel Adesanya produced one of the greatest knockout victories in UFC history to retain his middleweight crown.

In round two, Adesanya rocked Brazilian fighter Alex Pereira before catching him again as the champion fell to the floor.

Adesanya proceeded to mimic Pereira’s bow-and-arrow shots, while commentator Joe Rogan called it "one of the greatest knockouts" he had ever seen.

"I hope every one of you behind the screens can feel this level of happiness just one time in your life," the Nigerian-born fighter told Rogan in his post-fight interview.

"But guess what: You will never feel this level of happiness if you don't go for something.

"When they talk s*** about you, when they put a foot on your neck, and if you stay down, you will never get that result."

Thoughts on Trump's appearance at the latest UFC event?

Let us know in the comments.