A clip from "What a Difference a Day Makes," in which Mark tries to "threaten" Meredith after revealing his own best man duties.
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- Show:
- Grey's Anatomy
- Episode:
- Grey's Anatomy Season 5 Episode 22: "What a Difference a Day Makes"
- Related Videos:
- Grey's Anatomy Videos, Grey's Anatomy Season 5 Episode 22 Videos
- Uploaded by:
- Steve Marsi
- Uploaded: