Chelsea boss Carlo Ancelotti plans to exploit the depth of his squad as he attempts to win the Barclays Premier League title at the first attempt.
The Italian saw his side come from behind to win for the third successive time this season as Steve Bruce's Sunderland were blown away by a second-half fightback and victory was all the sweeter after Ancelotti made changes to the team which eventually defeated Hull at the weekend.
He said: "We changed because I trust these players and we have very good quality with all the players and I want to use them. We have a lot of matches and I want to keep the players fresh and in good condition."
It was all going so well for Sunderland, who went ahead after just 18 minutes when Darren Bent reacted smartly to a loose ball to claim his second goal in as many games for his new club.
But although the Black Cats defended manfully before the break, with Lee Cattermole clearing a Ballack volley off the line, they eventually succumbed after it.
The Germany international levelled with 52 minutes gone from Ivanovic's flick-on, and Frank Lampard converted a 61st-minute penalty after George McCartney had felled Didier Drogba.
Deco completed the job 20 minutes from time with Chelsea utterly dominant.
Ancelotti said: "I am very happy because we played very well all match.
"In the first half, even though we were behind, we were in control of the match with good possession of the ball.
"Sunderland had a good first half and defended strongly, but in the second half, they were tired and it was more difficult for them."
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