John Terry has accepted responsibility for the goals that saw Chelsea lose 2-1 at Everton on Wednesday night.
He wrote in Chelsea's matchday programme: "We went to Everton and suffered a bad defeat. On a personal note, both Everton goals were my fault. I'm big enough to take responsibility for that.
"Also, I know no-one went over to our fans on the far side of the ground so, on behalf of everyone there, I apologise for that. From now on, we'll make sure players come over to you, whatever the score. Once again, we are really sorry."
The result was a big boost for Manchester United and Arsenal and Terry admits they cannot afford to keep dropping points away from home if they are to reclaim the title.
"At home, we've been great but, if we want to go on and win the league, our form away from Stamford Bridge needs to improve," he said. "Three or four times this year, when Manchester United have had tough games, we've failed to extend our lead at the top.
"There's another tough period coming up for both teams and Arsenal still haven't quite gone away. We are in the lead and we need to, and can, keep it that way."