Pep Guardiola enjoyed his eighth win in his 16th dual against Jose Mourinho on Friday as Bayern Munich clinched the UEFA Super Cup against Chelsea after a dramatic penalty shoot-out.
As it had finished 2-all following extra-time at Prague's Eden Arena, Bayern held their nerve for a 5-4 penalty shoot-out win after Chelsea replacement Romelu Lukaku missed the crucial tenth spot-kick.
Having locked horns repeatedly as El Clasico rivals from 2010 until 2012 during Guardiola's four-year reign as Barcelona coach while Mourinho was in charge of Real Madrid, the pair renewed their rivalry in Prague.
Teams coached by Guardiola and Mourinho have now met on 16 occasions with five draws and three victories for Mourinho with Guardiola's teams have scored 28 goals to Mourinho's 18.
After his self-imposed year-long sabbatical in New York, Guardiola succeeded Jupp Heynckes as Bayern coach in June, while Mourinho returned for a second stint at Stamford Bridge having left Real the same month.
Heynckes left Guardiola with a tough act to follow as the Bavrians became the first German team to win the treble of European, cup and league titles having won last season's Bundesliga by a record 25-point margin.
"His rivalry with Mourinho is legendary, but we deserved the win," said Bayern's France winger Franck Ribery, who scored Bayern's second-half equaliser having been voted European player of the year on Thursday.
"We won the treble last year and it's not easy for Pep to follow in those footsteps, this win will help give us fresh impetus."
Before Prague, their previous meeting on the sidelines was the April 2012 La Liga El Clasico when Mourinho's Real enjoyed a 2-1 win at Camp Nou shortly before Guardiola walked away.
Mourinho's three wins against Guardiola-coached Barcelona were a 3-1 semi-final, first-leg win in the 2010 Champions League semi-finals with Inter Milan in 2010, the 2011 Copa del Rey with Real Madrid and their last duel, in La Liga, in April 2012.
The 5-0 hammering Mourinho's Real took at the hands of Guardiola's Barcelona in November 2010 remains the worst defeat the self-appointed "special one" has suffered in his career.
The rivalry was at its most intense in April 2011 when Mourinho's Real and Guardiola's Barcelona met four times in 18 days in the league, the final of the Copa Del Rey and twice in the Champions League semi-final.
With tension mounting, a war-of-words esculated when Guardiola launched into an infamous expletive-filled rant about Mourinho at the Santiago Bernabau, while his counterpart responded by belittling the Barcelona coach's achievements.
But Guardiola had the last laugh.
Real won the domestic cup and the league match finished in a 1-1 draw, but Barcelona's 2-0 win in Madrid in the Champions League first-leg was enough to put them through when the second finished in a draw.
Barcelona went onto lift the European title in the Wembley final against Manchester United.
In Prague, both men played down their rivalry in their respective pre-match press conferences.
When told that Bayern Munich president Uli Hoeness had described Guardiola as "by miles the better" manager when they rivals in Spain, Mourinho simply replied: "It's just his opinion. No problem."
Guardiola was equally straight bat when asked about the rivalry: "We're here for the players, not the coaches. Millions of people around the world will watch the game, not the coaches."
But it was Guardiola who again had the final word.