Twitter Mailbag: On GSP’s potential middleweight exit, Ngannou’s terrifying possibilities

What would “”GSP”’s” immediate exit from middleweight tell us about Michael Bisping’s title reign? Is Francis Ngannou going to scare off all the would-be heavyweights?

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Twitter Mailbag: On GSP’s potential middleweight exit, Ngannou’s terrifying possibilities – MMA Junkie