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GREEN BAY - Tight end Jared Cook left the Green Bay Packers' game Sunday against the Detroit Lions with an ankle injury and did not return.

Cook was the intended receiver on a pass over the middle during the second quarter. He lined up in the slot to the right of quarterback Aaron Rodgers, and the ball bounced off Cook's shoulder pad and fell incomplete.

But Cook was dragged down by safety Rafael Bush, and at some point during the fall he injured his right ankle. Cook stayed down momentarily before hopping part of the way to the Packers' sideline. He walked gingerly the rest of the way, limping heavily. He was taken to the locker room on a cart a few minutes later.

After the game, Cook wore a walking boot and exited the locker room on crutches.

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“I don’t have that information,” coach Mike McCarthy said when asked about Cook’s injury. “I briefly talked to (team physician) Pat McKenzie. There will be more tests that need to be done.”

Also injured was fullback Aaron Ripkowski, who suffered a back injury and did not return. Ripkowski told a reporter he felt "good" but did not yet know the extent of the issue.

"I’m not sure exactly what the details are yet," Ripkowski said. "I’m going to do some stuff tomorrow with the medical stuff to figure that out. Hopefully it’s nothing major. It doesn’t feel like it’s something major."

When asked to describe how the injury happened, Ripkowski declined.

"I honestly don’t want to discuss that right now," he said.

Inside linebacker Blake Martinez missed portions of the game as trainers attended to a significant cut on his nose.

Martinez's helmet gashed his nose during practice the week before the Packers played the Minnesota Vikings. On Sunday, the gash reopened and required medical attention. Martinez later returned to the field and finished the game.

Cornerback Damarious Randall (illness) sat out a few plays late in the second quarter before returning to play the second half.

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