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For just the eighth time since 1985, a No. 15 seed knocked off a No. 2 seed in the opening round of the NCAA Tournament.
On Friday afternoon in St. Louis, Middle Tennessee State beat Michigan State, in what is already being considered arguably the biggest upset in tournament history.
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Draymond Green weighed in on Twitter:
"Well there goes my bracket... Well more importantly my sanity.... Ahhhhhhhh somebody wake me up from this nightmare I'm living Right now!!"
The Warriors' All-Star forward played at Michigan State from 2008 to 2012.
Green's Spartans advanced to the Final Four during his freshman and sophomore seasons.
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As a junior, Michigan State lost in the first round to UCLA.
In 2012, the Spartans earned a No. 1 seed, but Green's college career came to an end with a loss to Louisville in the Sweet 16.
Draymond is averaging 13.6 points, 9.7 rebounds, 7.4 assists, 1.4 steals and 1.3 blocks per game this season.
Warriors head coach Steve Kerr, associate head coach Luke Walton and forward Andre Iguodala are probably all a little frustrated as well, as their Arizona Wildcats lost in the first round to Wichita State on Thursday night.