Girls' Generation's Sooyoung has passed on her part for TV Chosun's new drama, "Speed".

Though the media reported that Sooyoung would star in "Speed" late last year, it seems she's made a final decision to decline the role.

On February 16th, a representative from SM Entertainment spoke with�OSEN on the phone and said, "Sooyoung has decided not to feature on "Speed". Instead, she will focus on Girls' Generation."

Sooyoung was cast to play the role of the orthopedic surgeon and racing team doctor, 'Seo Ji Won'.�According to a source, "Speed" is having trouble finding actors to fill the cast and so scheduling has been pushed back from its original date of mid-December to an unknown time. With filming getting pushed further and further back, Sooyoung was forced to decline the offer in order to avoid scheduling conflicts with Girls' Generation's activities overseas.

Sooyoung began her acting career through KBS 2TV's sitcom "Unstoppable Marriage", and was also part of the cast for the movie "Romance Comic".

Source: Osen