While Bayern Munich and Borussia Dortmund will face each other many times after the Champions League final on Saturday night, for Jurgen Klopp it will be the last time he competes against Jupp Heynckes in opposite sections of the dugout.
Heynckes will make way for Pep Guardiola's much-publicised return to managerial duties next season, with the Spaniard set to inherit the team that humiliated his old side Barcelona to book their place at Wembley.
Heynckes' managerial career has seen him manage 10 different clubs, including Bayern on three occasions. His 34 years in the game look set to come to an end this weekend, with the former striker admitting that retirement is likely.
Heynckes' stoic personality broke down last weekend after he managed his last Bundesliga game with the side, with the 68-year-old succumbing to tears after Bayern defeated his old side Borussia Mönchengladbach 4-3.
"This is an emotional moment for me," he said at the post-game press conference. "I started my playing career and coaching career at Gladbach. It would certainly have been more emotional if it would have been at the Bökelberg [Gladbach's old stadium].
"I associate many triumphs, bitter defeats and some curiosities with it. I would like to heartily thank the Borussia fans for the wonderful farewell. This shows me that this is my home."
But his career isn't over for another four days yet, and his duels with Klopp since taking over Bayern in 2011 have brought both top honours and humiliating low points on both sides of the rivalry.
When Klopp joined Dortmund in 2008, the side had just finished 13th in the Bundesliga table the season before, and were no match for Bayern in either the standings or their match-ups, with their last league duel with Bayern resulting in a 5-0 thrashing.
His improvements were quick and clearly evident over the 2008-09 campaign, and by the end Dortmund were a much more respectable sixth, with no more heavy thrashings from Bayern to their name.
In 2009-10 Dortmund dipped again, but the following season they were neck-and-neck with the Munich giants - and finally able to beat them in the big matches.
Two wins over Bayern helped earn Dortmund the domestic trophy by seven points at the end of the 2010-11 season, while the Bavarian giants finished a disappointing third. This failure, and the need to counter Klopp's success at Dortmund, prompted the Bayern directors to lure Heynckes back from Bayer Leverkusen for a third tenure at Allianz Arena.
The following season Heynckes couldn't redress the power shift, and Dortmund won the title again. Two wins in the league for Klopp gave his side an eventual eight-point advantage over Bayern come the end of the season, and their 5-2 defeat in the German Cup was equally distressing for the Bavarians.
But Munich have come back to triumph again in this season, winning the Bundesliga title faster than any other club in the history of the league, and wrapping up the cup they lost so emphatically to Dortmund the season before.
Heynckes has certainly asserted his dominance over Klopp once more, and could certainly do so in the Champions League final as well. But with Klopp's quirky managerial style - the man described taking his team on a 'training camp' where they did no running, and only fished, swam and hunted for their food for a week - nothing can be predicted, as was shown when Bayern were humiliated by the Ruhr-based club in the cup final last May.
Both Bundesliga match-ups between the pair this season have ended in a 1-1 draw. While the coaches have often expressed respect for one another, Klopp apologized to Heynckes in March for an ouburst in which he accused the club of buying success.
Klopp may have said sorry for those comments, but he continues to cast Bayern as the big spenders, and Dortmund as the club with a 'special football project'. In his own eyes at least, if Klopp were in a fairytale he'd be the little boy from the small town, coming up against the red, fire-breathing dragon on Saturday night.
Emotions will be running high for both coaches, and it is the perfect ending to two years of duelling on the pitch for top honours.