Carl Frampton has the punch-power to beat any boxer in the super-bantamweight division including Scott Quigg and Guillermo Rigondeaux, says one of his former sparring partners.
Southern Area super-featherweight champion Mitchell Smith sparred with Frampton ahead of the Ulsterman's sixth-round knockout victory over Jeremy Parodi last October.
And the Harrow Weald boxer insists Frampton is well on the way to becoming a world champion insisting he is currently one of the best fighters on the world stage.
"He is 100% good enough to be the next British world champion boxer," Smith told skysports.com
"There's a lot that people haven't seen with Carl and I genuinely believe he can beat every fighter at super-bantamweight in the world and that includes (Guillermo) Rigondeaux as well.
"Rigondeaux is clearly a very, very good fighter but I don't think he has boxed anyone with the punching power of Frampton.
"He beat (Nonito) Donaire who was extremely good but did he have that genuine knockout power? Did he have that concussive one punch hit-you-on-the-chin spark-out power? I don't think so.
"Carl Frampton is one of the best pound-for-pound fighters in the world right now and I'd put him up there alongside all the world champions out there."
Frampton told Ringside last Thursday that discussions had taken place last year between his camp and former promoter Eddie Hearn over a potential world-title fight against WBA champion Scott Quigg.
So far those talks have failed to reach fruition but Smith is unsure whether undefeated Matchroom Sport fighter Quigg can handle the power of 26-year-old Commonwealth super-bantamweight champion.
"I haven't sparred with Scott so I don't know what his punch power is like," Smith said. "But from what I've seen, Jamie Arthur put him down with a jab and I think that he's been put over a few times.
"One thing I do know having sparred with Carl is that he has one-punch knockout power. He can hit you with one shot and turn your lights out it's as simple as that.
"There are a lot of things that people still haven't seen from Carl Frampton, he's dealt with every opponent that he's had relatively easily in my eyes.
"I think he is a top-class fighter. I've got a lot of respect for him, I think he is going to go far and I believe he can mix it at world level."