The pair had a long-running feud in Spain as Mourinho's Real Madrid sought to unsettle and replace Guardiola's all-conquering Barcelona as the dominant force in domestic and European football.
During that battle Guardiola only lost three of his 15 meetings with Mourinho, but the Special One insists personal success will not be on his mind when the teams take to the field on Friday.
| CHELSEA LATEST
|13/8||Chelsea are 13/8 with William Hill to win the Uefa Super Cup
"Go there and see what happened with Inter, the league of the records in Spain, the King Cup in Spain, the Super Cup in Spain, so you are very wrong. But it’s not me against him, it’s club against club.
"It’s not about me and Pep, it’s about Chelsea and Bayern Munich. Pep is not European champion and I’m not Europa League champion. We just coach here now, so it’s not about us."
When questioned on Bayern's biggest strength, Mourinho had no doubts. "Bayern’s strength is the team," he added. "The team is a team of players in the best moment of their career.
"All of them very, very, experienced - I think their average age is 27, 28 - year after year in the best competitions with their club and the national team.
"They also come from a season where they were the perfect team, because only perfect teams can win the treble.
"I played against Bayern many times, sometimes in the last years, others a long time ago. It doesn’t matter the system or the player, it’s always a powerful team and a big club."
Some see the Super Cup as a glorified friendly to kick off the European season, but Mourinho insists it will provide a valuable test for his young players, regardless of the result.
"Last year we played in the Europa League, so this is very important," he continued.
"I don’t want the players to think they can play at the same level as they did in the Europa League last season.
"The Champions League is a different planet, so it’s good for us that before we start, we play Bayern."