THE RIDDLE

In London, Spurs and Arsenal could do it, as could Chelsea and West Ham. Both Man City and Utd could also do it. Everton and Rangers could do it, but not Liverpool and Celtic. The only British clubs that could do it this season are Man Utd (who would prefer not to) and Arsenal (who are desperate to do it.)
There is only one other British club that could do it. Who are they and what is it?

Answer at the bottom of this post...






















...The answer is, they could win all three European Cups! The only other club that could do it are Aberdeen.

Thanks to some lovely people on Facebook for providing me with that!