As much as I hate Peter Quillin

[Russian Crushin]

There's a reason he's ducking Golovkin and fighting guys like Guerrero instead

[Derailed]

He doesn't want the fight because its too risky and not enough money. He admitted this.

[Los Zetas]

He would beat the breaks of GGG. I don’t know why Quillin won’t make the fight. Maybe even he’s believing the hype, but I think its a pretty easy fight for him

Peter sparred GGG. There's a video where he was saying GGG didn't beat him up and was denying it. However rumour was it that GGG busted him up in big gear.