Cristina Yang, surgen extraordinnaire, Mer's "person," our friend, our hero. We shall miss you.

Seen here, Cristina Yang poses for a picture

In a photo from "Brave New World," from Season 5, Cristina makes an interesting discovery.

Mer, Cristina and Zola in "Free Fallin'". The eighth season of Grey's Anatomy premieres September 22.

Dr. Cristina Yang, the intern played by Sandra Oh.

Sandra Oh as Cristina Yang on Grey's Anatomy.

Cristina and Shane in a photo from the November 29, 2012 episode of Grey's Anatomy.

Alex and Cristina converse in this picture from "Here Comes the Flood," from the fifth season of Grey's Anatomy. Looks like a great one!

Cristina Yang in agony in the eighth season finale of Grey's Anatomy.

She doesn't know what to make of this patient... or her own life as Burke's caretaker.

It's good to see Joe back on Grey's Anatomy. Here he's training his new employee.

Unfortunately for fans of Preston Burke (Isaiah Washington) and Cristina Yang (Sandra Oh) it was not to be in the Season 3 finale of Grey's Anatomy, "Didn't We Almost Have it All."

Sandra Oh as Cristina Yang in a scene from this week's Grey's Anatomy episode, "This is Why We Fight."

Hey Cristina! Meredith tries to get through to her co-worker in this scene from the installment "If/Then."

Jackson, Cristina and April in "She's Gone," the second half of the eighth season premiere of Grey's Anatomy.

Owen and Cristina kiss in "I Will Survive."

Cristina and Meredith are the best of friends.