The frosty relationship between two of the most highly-rated minds in management has been a source of debate for many years, but Villas-Boas thinks any personal battles will take a back seat on Saturday.
When asked how much his broken relationship with Mourinho mattered to the game, Villas-Boas said: "In my opinion not a lot.
"In the end we try to serve the players as much as we can.
"The game is theirs and the history of both clubs completely surpasses our achievements.
"I would say that we should, in my opinion, be secondary figures to a spectacular game that means a lot to the fans and much more to the players."