Torres swapped Merseyside for London in a British record £50 million deal just before the transfer window shut on Monday and will likely have the chance to rub salt in Liverpool's wounds at Stamford Bridge.
"It is like destiny," Torres said on his new club's website. "If I have the chance to play I will do my best for Chelsea and hopefully I can score."
His record of seven goals in eight games against his new club, including both in Liverpool's 2-0 win over Chelsea at Anfield in November, made him a thorn in their side.
"When I played against Chelsea there was always a big motivation because it was a special game, it was always one of the biggest games of the season," said Torres.
"This is one of the reasons why I wanted to join Chelsea because I want to be part of this kind of team... If they (Chelsea fans) are happy as well because I am not going to score any more against them then it is good."
Nicolas Anelka played well in a deeper role in Tuesday's 4-2 win at Sunderland so Salomon Kalou could make way for Torres to play alongside Didier Drogba in front of Anelka playing at the head of a midfield diamond.
"We have to test him tomorrow and the next day," Ancelotti said of Torres. "If his fitness is not a problem then he will play on Sunday."
The hole left by Torres has already by partially filled by Luis Suarez as the Uruguayan scored on his debut on Wednesday in Liverpool's 2-0 victory over Stoke City that made it three wins and a draw in the league for new boss Kenny Daglish since he replaced Roy Hodgson.
If Sir Alex Ferguson's men avoid defeat they will set a club record of 30 league games unbeaten having matched their previous best with Tuesday's 3-1 win over Villa.
"We hope to finish the season unbeaten," winger Nani told MUTV. "But we know it will be very hard."
