Crawford is defending his WBO belt, having finally secured a fight against one of the biggest names in the division, and will be looking to remind everyone that he’s one of the best pound for pound in the world.
The 34-year-old is the favorite to win against Porter, who is a former two-time world champion, and whose defeats have ended in thrilling fights against elite opponents.
Kell Brook, beaten by Crawford last November, won Porter’s IBF belt in 2014, and the American has since been beaten only by Keith Thurman and Errol Spence Jr, both on points.
His aggressive style means Saturday’s fight at Michelob Ultra Arena in Vegas promises to be all about action, and the victory would propel Porter to the top of the sport.
However, Crawford will be determined to make a statement in the biggest test of his career yet.
How to watch Crawford vs. Porter
TV channel: In the UK, Crawford vs Porter is available to watch on Sky Sports Main Event and Sky Sports Arena, with coverage starting at 02:00 GMT on Sunday mornings.
The main event is scheduled to start around 4 a.m.
Direct: Sky subscribers will be able to watch the fight through the Sky Go online player or app.