The playing surface at TCF Bank Stadium is "as hard as concrete" and "unplayable," Minnesota Vikings punter Chris Kluwe tweeted Sunday afternoon after a brief practice there.
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Despite skepticism from both Vikings and Chicago Bears players last week, team and University of Minnesota officials have expressed confidence that the field would be in acceptable condition for Monday night's game -- even after a mad scramble to clear 20-inch snow drifts from the field this week.
But after Sunday's practice, Kluwe issued a series of tweets that predicted the game would be a "trainwreck."
Kluwe: "The field is as hard as concrete an hour and a half after they took the tarp off, and anyone that hits their head is getting a concussion. ... I find it interesting that the NFL can claim an emphasis on player safety, and then tell us the field is fine. It's beyond hypocritical. ... I can only hope, however unlikely, that no one gets catastrophically injured at the trainwreck that's about to take place tomorrow night."
Via Twitter, Kluwe said he had been asked to stop tweeting about the playing conditions.
Sunday's practice was closed to the media and there was no immediate reaction from the team.