This is a weird fight but I dont think that even the plot device firestorm could find a way around juggernaut invulnerability.
By the way, on more than one occasion, I have seen juggernaut use super speed (running speed) where he moved in a blurr. I will get the issue number for you all but juggernaut does possess super speed (again running speed). I know one time you all might can remember him using it was when (I know you all hate using this) he was fighting wonderwoman and all access and blitzed her. Another time was in world war hulk and another time was when cyclops had a bomb implanted in his chest and the xmen was trying to get the bomb out, juggernaut blitzed the xmansion with anyone noticing it. He also blitz beast, koing him before he even realized it.
I give this to juggernaut 10/10