Chelsea vice-captain Jorginho has sent a warning shot to his teammates that they must learn from their mistakes in the Champions League or risk missing out on qualification to the next round.
This came after a crazy 4-4 draw against Ajax on Tuesday night at the Stamford Bridge, in a match that the visitors were reduced to nine men for the last 20 minutes.
Jorginho scored twice, from the spot, with Cezar Azpilcueta and Reece James scoring the other two.
The Italian, however, feels they should have scored the winning goal, especially after the referee showed two red-cards to Daley Blind and Joël Veltman.
"We didn't win and we should have done," said Jorginho. "In this situation when you are with two more players, I think we could win and we should.
"[We have learnt] that we cannot make mistakes, [at] this level of football you can't. Every single mistake we can lose the game. We could play with more calm when we had two more players, not go for goals straight away, pass a little bit more to find space. I think we learnt that we can improve from this game,"
"I think the most important thing is we didn't give up. When it was 4-1, it is hard to believe and we did. It is so important for us."
Chelsea lost their opening group match 1-0 at home to Valencia and will be hoping to win their remaining two fixtures.
They next visit the Spanish side in matchday five, before welcoming Lille for the last group match.