Tuchel has responded by leading Chelsea to the final four of the Champions League, with the Blues beating Porto 2-1 on aggregate in the quarters.
With the quarter-final and semi-final fixtures having been drawn together, Chelsea knew that they would be facing either Real Madrid or Liverpool for a place in the final.
Real Madrid beat Liverpool 3-1 in their first leg at home in the Spanish capital, and held on for a goalless draw at Anfield to secure their spot in the last four.
Should Chelsea beat Real over two legs to reach the final, then they will face either PSG - who saw off holders Bayern Munich in Tuesday night's other quarter-final - or Manchester City, who beat Borussia Dortmund 4-2 on aggregate.
Champions League fixtures
Semi-finals:First leg 27/28 April | Second leg 4/5 May
Real Madrid vs Chelsea
PSG vs Man City
Final: Saturday 29 May (Ataturk Olympic Stadium, Istanbul