Promoter Frank Maloney has called for fans to get behind Rendall Munroe.
Alfreton-based Munroe meets the dangerous Victor Terrazas in a WBC super-bantamweight world title final eliminator at Coventry Skydome on April 23.
“Rendall has been fighting in the First Division of British boxing and it’s time to step him up to the Premiership,” said Maloney.
“The venue holds just over 3,200 fans and so far we have sold two thirds of the tickets. But we need this to be a sell-out to show that Rendall has reached the big time and can be classed alongside the biggest names in Britain.
“A packed crowd will intimidate the Mexican and act like an extra fist in the ring on what is the biggest test of his career so far.”
Munroe’s manager, Mike Shinfield, believes that the fans will make a huge impact on the night.
He said: “He’s never fought outside of Mexico and we need the crowd to be the extra man.
“When things are getting tough the crowd can help you though it. When Rendall has 3,000 cheering him on, he will always dig that little bit deeper.”
Rendall is thought to be in tremendous shape for the fight and has been sparring with English flyweight champion Ashley Sexton this week.