Crolla, who holds the WBO intercontinental strap, has strung together three successive wins to move up the world rankings, and he has revealed that a win at the weekend could earn himself a final eliminator for the WBO title.
The 27-year-old is quoted by Sky Sports News as saying: "I'm due a massive fight and if you look at the WBO ratings, there's a good chance I could get a final eliminator to fight for the WBO belt later in the year.
"All those fighters are superb operators but I wouldn't hesitate in getting in there with them and I would be confident of becoming Britain's newest world champion alongside Kell Brook and Paul Smith in a couple of weeks.
"I have to make sure that I come through Saturday night against Diaz and I am sure that if I do so in style, Eddie Hearn will be able to deliver something big for me. Anyone who knows boxing knows that Diaz is a quality operator and they know this is not an easy fight."
Crolla has won 28 of his 33 professional bouts, while Diaz, the former WBC super-featherweight champion, has 38 victories from 51 encounters.