01:18Sandra Oh has revealed the reason why she left Grey’s Anatomy, after almost a decade on the show.The 55-year-old actor played Dr Christina Yang from the first season, which premiered in 2005, all the way through to its 10th season in 2014.Discussing her decision to leave the long-running ABC medical drama, she told Jesse Tyler Ferguson on his Dinner’s On Me podcast that she believed that she had completed her job there.“I feel like I created a full character. I feel I grew the character [in] 10 years time, where it’s a believable growth. People grow in 10 years, and I think she really did grow.”She said that it was a “real privilege” to be able to dictate and plan her character’s exit alongside show runner Shonda Rhimes.Up next