Chelsea manager, Thomas Tuchel, has given reasons he took off Timo Werner and Kai Havertz, during their 2-0 win at FC Porto in the Champions League quarter-final.
The Blues returned home with a commanding lead from the first leg of the game.
Mason Mount and Ben Chilwell got the goals, while it was another miserable outing for Werner and Havertz.
Werner was replaced by Olivier Giroud and Havertz by Christian Pulisic.
“At the time I accepted that it was a tough match for Timo and Kai today, they didn’t have their best day.
“We did not deliver so good, so the connection between the seven and the front three wasn’t there. The balls we delivered weren’t the best balls.
“Also, I could feel that our two German players, Kai and Timo, didn’t play at their highest level so I wanted to have an impact from the bench.”