"I'd love him to try his wares at the Broncos," Widdop senior said."I think Gareth would be superb for the Broncos. Everyone bangs on about him being good at fullback but I've coached him since he was six and he was always a halfback.
"At the moment, he's not playing the traditional halfback's role at Melbourne so people haven't seen what he can really offer.
"Would I be surprised if he left? Well that's rugby league these days and, because of the salary cap, people do have to move on. It's about testing yourself as well.
"The thing about Melbourne is you have the big three (Cameron Smith, Billy Slater and Cronk) and they get all the accolades, but if he went to the Broncos, Gareth could be the main man.
"If I had my way, Gareth would definitely go to the Broncos. I'm a Broncos supporter and Gareth has been a Broncos supporter, our whole family is ... but I'll support whatever decision he makes."
Asked if Widdop, 24, is genuinely considering the Broncos, Gary said: "Yes. They are one of a few clubs who are fishing around.
"There are other clubs waiting to see what happens before they make a formal offer.
"The Broncos are in the mix, as are a couple of other clubs . . . there aren't too many quality halves on the market."