Pep Guardiola has challenged Hansi Flick and Bayern Munich to a 'battle of the sextuples' after the German side matched his record of six straight trophies during his time at Barcelona.
Bayern beat Mexico's Tigres UANL 1-0 on Thursday – thanks to Benjamin Pavard's decisive goal - to win the Club World Cup title and earn their sixth trophy in less than nine months.
Having won the league, both domestic cups, Champions League, Super Cup and Club World Cup, Bayern became the second team to win the sextuple after Guardiola set the record with Barcelona in 2009.
As a result, the Manchester City boss – who spent three years as Bayern manager before moving to the Premier League – shared a video on Twitter to congratulate his former team.
He also took the opportunity to challenge Hansi and is side to a 'seventh title' showdown.
He said: 'Big congratulations to all the Bayern family for this incredible success, to be the Club World Cup champions and especially to win six titles.
'We are so proud, I am so proud, a big congratulations for everyone, especially Hansi [Flick], the players and the backroom staff for this amazing thing.
'But I would like to say to Hansi that you are the second team to win the six titles in a row!
'Before you, there was another team, Barcelona… so maybe I can call Messi and company and we can play for the seventh title? Tell me when and where and we will be there!'
Bayern came close to completing the sextuple under Guardiola in 2013 – having won the Bundesliga title in each season he was in charge.
Source: m.allfootballapp.com