BoxRec

Both won their middleweight belts by beating Hassan N'Dam.

Both had 3 mutual opponents - N'Dam, Fernando Guerrero, Gabriel Rosado.

Who would've won had they met circa 2014-2015?

I'd favor Lemieux. They're both limited, but I think he had quicker hands than Quillin, and would just get there first a lot. I'm not sure if he'd stop Quillin, but I can see him dropping him for sure.