Is There a Rivalry Between the Two?

Arsenal and united were the two best teams in europe, ahead of reil madrid, ventus, a c milan. United versus arsenal was a generally domestic squabble. The caragosites have been pretty much at this level since 20 18. I think chelsea wone the hepin cup last year. It is a real levellor dominance that i'm not sure we've really seen before. If we open it up to not just english football, but european football in general, and and two teams competing for the biggest prizes, two teams being inarguably the best two teams in the world. Which are the match ups on the podium here? Michael