Former heavyweight champion Mike Tyson and YouTuber-turned-boxer Jake Paul are set to fight in a live boxing match streamed on Netflix Friday, in what would be Tyson’s first sanctioned match in nearly 20 years amid rising concerns about the 58-year-old’s age and safety.

There are three days until the much-anticipated boxing match between Mike Tyson and Jake Paul. Here are the sanctioned fight rules explained.

As Mike Tyson and Jake Paul get set to fight live streaming on Netflix, the week leading up to the bout has begun. On Tuesday, there was an open workout for the media, with those on the undercard showing off along with the two fighters in the main event.