Yes, yes, we know it took the combined might of Goku, Frieza, and Android 17 to defeat Jiren once and for all in the Tournament of Power. But a good chunk of Universe 11's defeat came from fighting the other universes, Universe 6 fighting directly against the Pride Troopers, and, by Vegeta's analysis, Jiren not fighting seriously for most of the tournament.
For this rumble, we'll have the same arena, same rules, same lineups, and same powerlevels at the time of ToP, but it's just the two teams going at it.
How does this battle go?