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Michigan State's Keith Appling (11) drives between Louisville defenders Gorgui Dieng, left, and Elisha Justice during the first half of an NCAA men's college basketball tournament West Regional semifinal on Thursday, March 22, 2012, in Phoenix. (AP Photo/Chris Carlson)

Top-seeded Michigan State loses to Louisville

Gorgui Dieng swatted away the West Region's top seed to send Rick Pitino into another regional final.