Scott Quigg expects the toughest test of his career when he defends his WBA super-bantamweight title against Nehomar Cermeno in Manchester on April 19.
And Gallagher believes Quigg has the qualities to appeal to a broad range of fans - not only those who clamour for a big domestic fight against Carl Frampton.
"I don't think Carl Frampton is the defining fight. There's room for Scott to have that exposure now that there's only three world champions in Britain with no Darren Barker or Ricky Burns.
"It's unfortunate they lost of course but with Sky getting behind Scott and with Froch on Box Office it's there now for Quigg to get all the build-up and the recognition that comes with it.
"He's a likeable, humble kid and he's very dedicated and determined to get where he wants. But these next three fights will be defining ones - this defence, a fight in the summer and a huge fight we have planned at the end of the year.
"After that people will have to take their hats off to him and acknowledge that in the space of two years he's gone from challenging for the British title to trying to unify the world titles."
Quigg, however, is refusing to look to far ahead, and is focused on headlining a big show at his local arena in Manchester for the first time.
"All I want to know is what's next," he said. "There's Kiko Martinez, Leo Santa Cruz and Frampton out there, they're the fights you want to be in. But they won't happen if you don't take care of the one that's in front.
"It's in the back of your mind but you've got to keep building. It's the first time I'm headlining at the Phones 4U Arena and it's only 10 minutes from Bury. From being a kid watching Ricky Hatton, Naseem Hamed and Michael Brodie there as I did it's what all the work and sacrifice and discipline has been for."