In the last three games on their home turf, Chelsea have scored 13 goals without reply but they are suffering on their travels, where they have lost their last two games.
Related ArticlesBolton Wanderers v Chelsea: match previewMalouda calls for Bridge formCarlo Ancelotti demands away winsSturridge fluffs his lines on full Chelsea debutCarlo Ancelotti looking to rest playersSport on televisionDefeats at Wigan and Aston Villa temporarily blighted their good start under Ancelotti but victories over Atletico Madrid, Blackburn and Bolton at home have restored confidence in the Italian coach's 'diamond' formation.
Their 4-0 victory over Wanderers on Wednesday night was achieved without numerous first-team regulars.
They will all return against the same opposition tomorrow for a game that will once more test Chelsea's character and Ancelotti's system away from home.
"We want to maintain the same system," said Ancelotti. "I said before that for this season, we follow this way at home and away.
"The last two matches away were not good for us, but we don't want to change because of that. I think this system is very good away from home.
"Tomorrow will be a different game to the game in the Carling Cup. I think that Bolton can play different, but we want to play at the same level.
"We will pay attention to their quality, but we will put our best qualities on the pitch.
"Bolton will want to change something from Wednesday. We want to play the same, because we played well. We stayed compact over the 90 minutes, which is important against Bolton.
"To win this Premier League is a very long race. If it's possible to maintain being top of the table, as we are, then that's good.
"It means we've started the season well. But the race is very long and will only finish at the end of the season."