Chelsea defeated Barnsley 1-0 to book a place in the FA Cup quarter-finals courtesy of a goal from Tammy Abraham.
Tuchel made ten changes to the team that defeated Sheffield United in the Premier League on Sunday with the likes of Kurt Zouma and Billy Gilmour starting.
The Blues struggled all through the game needing a Tammy Abraham goal just after the hour mark to proceed.
Tuchel is not happy despite the win:
“We scored the goal and I had the feeling that they increased the risk, but we stepped down in the little decisions,” said the German.
“[There was] not enough courage and it was too deep for a long, long time. We clearly can play better, so yes, I expected more but not in terms that I am frustrated. We can do better but I don’t want to be too hard on the players.”
On playing Sheffield United in the quarter-finals:
Chelsea have been a handed a tie against Sheffield United in the quarter-finals of the competition.