When the New England Patriots face off against the Dolphins in Miami on Sunday, Zak Kuhr will take the field with a new role. The inside linebackers coach will serve as New England's fill-in defensive coordinator and call plays for the defense in place of Terrell Williams, who is away from the team because of a medical matter .

Head coach Mike Vrabel announced Kuhr's elevated role for Sunday's game during his Friday afternoon press conference at Gillette Stadium.

"Zak Kuhr will call the game defensively and I'll help him like I always do," Vrabel said. "But I'm excited for that. I think we've been prepared all week for that.

"It was a good week of preparation," added Vrabel.

This is the second time Williams, 51, has had to leave the team due to a medical issue. He was away from the

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