Chelsea reach their fourth FA Cup final in five seasons and end City’s hopes of a quadruple this campaign.
The Blues dominated the first half, however, Tuchel’s men had to wait for Ziyech’s second-half routine finish to open the scoring after some good work by Werner down the left.
Guardiola’s men rarely tested Kepa and can have no complaints about their exit at the semi-final stage of this year’s FA Cup.
Before this fully deserved 1-0 victory, the German had never previously got the better of Guardiola as a coach.
When the pair had previously squared off in Germany, they were never quite competing on a level playing field, even after Tuchel had swapped Mainz for Borussia Dortmund. There was just no stopping Guardiola’s Bayern Munich.
However, Tuchel has since moved on to bigger and better things, taking Paris Saint-Germain to a first Champions League final last year before being appointed as Frank Lampard’s successor in January.
As at the Parc des Princes, Tuchel now has the resources to rival those of Guardiola at City, and he has now shown himself capable of making a major impression on English football.
He’s already had a massive impact at Stamford Bridge, of course, losing just two of his first 19 games in charge of Chelsea.
And just this week, he led his new team to the semi-finals of the Champions League, meaning the Blues could yet meet City again this season, with a European Cup on the line.
The Blues will find out their FA Cup final opponents tomorrow as Leicester City face off against Southampton in the other semi-final tie.
The Citizens, whose hopes of the quadruple are now over, return to Premier League action on Wednesday with a trip to Aston Villa, while Chelsea host Brighton and Hove Albion the day before.