This week on Grey's Anatomy, Seattle Grace takes on Seattle Presbyterian in softball. Check out ABC's Grey's Anatomy promo and photo gallery for this can't-miss team-building exercise.

On the November 3 episode of Grey's Anatomy, the doctors become nostalgic when George O'Malley's mother returns for medical help after a botched surgery at a neighboring hospital.

Seattle Presbyterian, perhaps? It's unclear, but it should be interesting to see how she's received in any case, and whether she sheds any new light on George and his family members.

Meanwhile, the residents are inspired by a medical miracle - a harvested heart that continues to beat outside the body, and a new pediatric fellow excites Arizona and makes Alex feel threatened.

Jackson lets his suspicions about Mark and Lexie interfere with his work, and Henry and Teddy have their first marital fight. Click to enlarge images from "Heart-Shaped Box" below ...

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