Three years after leaving Arsenal, Arsene Wenger is trying to sell the merits of a biennial World Cup rather than waiting four years between tournaments.
The 71-year-old Frenchman, who is now director of development at FIFA, also called for a single annual period of international qualifiers in a global football calendar.
Euro 2020 is set to kick off from June 11 with Turkey locking horns against Italy in the tournament opener. In the 2016 edition, France had lost the finals of Euro against Portugal.
Arsenal is in talks with Arteta about becoming the second manager of the Premier League club since Wenger left Arsenal after 22 years in May 2018.
Andres Iniesta became the latest big-name player to join the J-League after agreeing terms with Vissel Kobe on Thursday.
Arsene Wenger's decision to step down is also a huge opportunity for the Gunners to reestablish themselves among the elite of English and European football.
Guardiola, who also faced Wenger's Arsenal while coaching Barcelona and then Bayern Munich, said the 68-year-old Frenchman had his utmost respect.
Wenger, during his first decade in charge of Arsenal, was vying for English football supremacy with a Manchester United side under the control of Ferguson.
Wenger announced his arrival as a revolutionary force in England by overhauling a culture of booze and bad diets, but his inability to maintain his own high standards prompted a parting of the ways.
Mourinho has had repeated run-ins with Wenger during his time in England, notably as manager of Arsenal's London rivals Chelsea.
The 68-year-old has won three Premier League titles and a record seven FA Cups during his near 22-year stint at Arsenal.
Arsene Wenger will bring his 22-year stay in charge of Arsenal to an end at the end of the season, the Frenchman announced on Friday.
The Gunners suffered another chastening 3-0 defeat at home following a loss by the same scoreline in the League Cup final at Wembley.
City moved 16 points clear at the top of the Premier League as fresh from claiming their first silverware of the Pep Guardiola era in the League Cup final on Sunday.
Placed sixth in the EPL table, Arsenal have 45 points -- 27 less than Manchester City, a squad that has looked unstoppable so far.