Martin Murray believes Gennady Golovkin could struggle to find opponents after his comprehensive victory over Matthew Macklin.
The Kazakh middleweight knocked Macklin out inside three rounds - the 14th time he has achieved that feat in his 27-fight career - in Connecticut on Saturday night to preserve his unbeaten record and retain his WBA and IBO titles.
British middleweight Murray praised Golovkin's all-round ability after watching the bout in the Sky Sports studio, but thinks the big names may now try to keep their distance from the 2004 Olympic silver medallist, who has stopped his last 14 adversaries.
"Macklin got it right when he called Golovkin the real deal because he didn't even break sweat and there was no way he was going to get beaten," said the St Helens fighter, who lost on points to WBC champion Sergio Martinez in April.
"He is so natural with his shots, but his defence is underrated, too, and he is one of these fighters that will fight anybody and is not bothered [about opponents].
"People have said he might go down to 154lb (light-middleweight), or up to 168lb (super-middleweight) and I think he could.
"But he might get sidestepped after a performance like the one against Macklin; you can't see a weakness or a chink in his armour and it might take a big pay-day [to get him an opponent]."
Londoner Darren Barker, who will meet Australia's Daniel Geale for the IBF middleweight strap in August added: "Golovkin took control of Macklin right away and I was very impressed with his footwork.
"Everyone talks about how hard he punches but he gets in and out of range so quickly, slips shots well and gets a lot of leverage - and the shot he won with was worthy of winning any fight."
Macklin's attentions could now turn to domestic dust-ups with Murray and Barker after his third tilt at a world title ended in failure.
But Murray says it may be some time before he and the Birmingham-born Irishman go toe-to-toe.
"I have got my own route that I am going on and just because he has lost it doesn't mean I will give him a fight," said the 30-year-old about a clash with Macklin, who has also been defeated by Martinez and Felix Sturm in world title bouts.
"But you have to give it to Macklin because he is a good fighter; he will go anywhere and fight anybody, but he has just come up short."