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GREEN BAY, Wis. -- Jordy Nelson, Green Bay's top receiver, could miss an NFC divisional round playoff game against the Cowboys on Sunday because of multiple broken ribs.

Packersnews.com on Monday reported the extent of the injury, which Nelson incurred when hit during the second quarter of a wild-card round game against the New York Giants. He was taken to the locker room in obvious distress.

According to the Mayo Clinic, broken ribs usually require six weeks of healing. The healing process includes restricting physical activity.

Nelson spent Sunday evening in a local hospital being evaluated. He was released on Monday and reported to Lambeau Field for treatment.

Coach Mike McCarthy, speaking before the report, declined to describe the extent of Jordan's injury. He must be able to practice on Saturday to play against the Cowboys, McCarthy said. The Packers follow a different game-week schedule in that they do not go on the field on a Friday and have a regular practice on a Saturday.

"If he can practice, then he may have a chance," McCarthy said.

McCarthy says jordy Nelson had rib injury will rehab until Saturday practice. Could play vs.cowboys — Gerry Fraley (@gfraley) January 9, 2017

Nelson won't play vs.cowboys if he cannot practice on Saturday. — Gerry Fraley (@gfraley) January 9, 2017

Nelson has reestablished himself as a top receiver after missing last season because of a torn ligament in the right knee. In the current seven-game winning streak, Nelson has caught 45 of 59 passes from quarterback Aaron Rodgers for 607 yards and five touchdowns.

McCarthy said he expects running back Ty Montgomery (leg) and linebacker Blake Martinez (knee) to practice Wednesday, when the Packers return to the field.

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