That was supposed to happen Sunday. Instead, rookie Nick Foles will be the likely starter for the Philadelphia Eagles because Vick is still recovering concussion suffered in a loss to the Dallas Cowboys.
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"That's unfortunate for a lot of different reasons," Griffin said. "The key factor that people look at when it comes to me and him is just the excitement level that we bring to the game, the things that we can do. Aside from that, I try to stay away from the comparisons."
But Vick's head injury makes the comparisons even more inevitable. Griffin has already suffered his first NFL concussion, and his bravery as a ball-carrier leads to doubts about his durability — the same doubts that have followed Vick's career.
"It's not a cautionary tale; football's a violent game," Griffin said. "And Vick, he's been beat up a little bit throughout his career. There's other quarterbacks that get beat up throughout their careers. There's a number of quarterbacks right now that are out with concussions, shoulder injuries, anything like that."
Shanahan said there's no way to tell whether Griffin can avoid the type of injuries that have hindered Vick's career.
"If anybody could answer that, they'd be pretty smart," Shanahan said. "I don't know if you can answer that question in the National Football League. You're always hoping people can stay healthy. I think Robert has gotten much better knowing when to slide, when to throw the ball away."
Griffin has indeed become more judicious about dodging big hits, but he sent a shiver through the stadium when he was helicoptered during a fourth-and-4 run two weeks ago against the Carolina Panthers.
"If it's fourth-and-4," Griffin said, "it's worth anything."
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