Four new sneak preview clips of this week's premiere of Grey's Anatomy have been released online. In the first excerpt, Callie convinces Alex to tell Izzie about George ...

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Follow the jump for three more clips from "Good Mourning" and "Goodbye" in which:

• Alex breaks the news about George to a stunned Izzie
• Callie receives some bad news regarding a promotion
• Arizona tries to help Bailey cope with George's state

Check out some of the drama coming our way Thursday night...

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Steve Marsi is the Managing Editor of TV Fanatic. Follow him on Google+ or email him here.