By ESPNSTAR.com staff
Van Persie moved from Arsenal to United during the summer in a high-profile £24 million move, and the Dutchman has so far proved to be worth every penny, scoring a remarkable 13 goals in 19 appearances for the club so far.
The 29-year-old's success with the Red Devils will undoubtedly prove a sore point with City manager Roberto Mancini; it was no secret that the Italian tactician was interested in signing the 29-year-old last season and the Citizens reportedly offered several lucrative deals to the former Feyenoord player, but Van Persie eventually opted to move to the red side of Manchester instead.
And Van Persie stoked the fires ahead of the Manchester derby by claiming that he does not regret snubbing City for United.
"I made my mind up very quickly and I am coming into work with a big smile on my face every day," Van Persie was quoted as saying by the Sun.
"It is not really work, it is my hobby - I love football.
"But everyone has been so nice to me and I have been having the time of my life here.
"So I don't regret that."
With a win on Sunday, current league leaders United can extend their lead over second placed City by six points, and Van Persie has declared that his side will go all out for the win.
"Of course in a derby you have lots of people involved - the fans and the players.
"Everyone is really committed and wants their team to win and we'll do all we can to win too.
"Anything can happen but that's the case with us every week.
"We want to stretch our lead and keep our run going."
City ran out 1-0 winners over United the last time both teams met at the Etihad stadium.