Ex-UFC star Justin Wren says Conor McGregor is just WRONG for trying to paint Dustin Poirier's charity foundation as some shady operation ... and it's more evidence that Conor is simply not a good person.
Wren is widely respected for his charity work all over the world -- in fact, Joe Rogan has praised Wren's "Fight for the Forgotten" foundation for years for all of the work he's done helping impoverished communities in Africa.