John Mikel Obi has apologised for the mistake that led to the equaliser in the 2-2 draw with Italian champions Juventus on Wednesday in the first group match.
Chelsea let a two-goal lead slip and almost lost in the dying moments as Fabio Quagliarella’s shot grazed the upright.
Obi won the ball and made to pass to Eden Hazard but the pass was misplaced and from the next move Quagliarella scored with 10 minutes left on the clock.
“If I want to make up an excuse, I can. But, for me, I gave the ball away. I put my hands up, we move on,” Obi told Sky Sports.
“I think we switched off. It was a pass to Eden that didn't quite get there and then we just switched off. We should have dealt with it properly.”
Chelsea fans were miffed as Obi did not make a move to win back the ball and allowed Claudio Marchisio to play in Quagliarella. John Terry was also culpable as he tried setting an off-side trap which did not come off.
“I'm sorry about the mistake, but there are no excuses.
“I think that's what you get from playing in the Champions League.
"You make a mistake, you get punished for it.
“I think we started the game well, we scored two goals and we had more possession of the game. We had the game under control but they scored one goal.
“We came out in the second half trying to do something in the way that we started the first half but their second goal was a cheap goal to give away."
“I think we looked so good all throughout the game, except when it was 2-2. We just lost our head,” Obi added. The Nigerian had 74 touches and a pass completion ratio of 82%.
Chelsea are away to Nordsjaelland on October 2. Nordsjaelland lost 2-0 to Ukrainian champions Shakhtar Donetsk.