Eagles' attack: 'Evolution' or 'crazy'?
The Philadelphia Eagles' offense may be fun to watch, but some NFL players have doubts they can continue running coach Chip Kelly's up-tempo attack every week.
Veterans know staying healthy is a prerequisite for success in the NFL. And Green Bay receiver Jordy Nelson, for one, saw signs of trouble during Philadelphia's 33-27 win against the Washington Redskins on Monday night.
"Just watching the game from the outside, you could already see [Michael] Vick struggling ...
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