Police are investigating the stadium tunnel incident

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What Michigan State players did in the tunnel is an attack

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The lone narrow tunnel, on and off the field, for both teams at Michigan Stadium on Saturday night

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This tragedy is an embarrassment for Michigan State and coach Mel Tucker

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A group of Michigan State players surround a without helmet Michigan player after the Wolverines defeat the Spartans

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And attacked him, so he was loser's behavior

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Video reveals Ja'Den McBurrows has been attacked

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The names and numbers of the attackers are clearly visible in the video

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Michigan State has little choice but to crack down on players

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Michigan athletic director Warde Manuel said, "What happened after the game is completely unacceptable

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