Discuss as:

Louisville makes Michigan St. first No. 1 to fall in NCAA basketball

Lucy Nicholson / Reuters

Michigan State Spartans forward Draymond Green bites his jersey during the final seconds of a loss to the Louisville Cardinals in the NCAA men's West Regional basketball tournament in Phoenix, Arizona on Thursday, March 22, 2012.

Darryl Webb / Reuters

Louisville Cardinals guard Russ Smith celebrates as Michigan State Spartans guard Brandan Kearney runs past in the final seconds of the game on Thursday night.

Chris Carlson / AP

Michigan State's Brandon Wood and fellow players and coaches on the bench watch the closing seconds of the team's 57-44 loss.

NBC Sports.com reports: With No. 1 seed Michigan State getting upset by No. 4 seed Louisville 57-44 in the semifinals of the West Region.

 

 

 

Sign up for the msnbc.com Photos Newsletter