Source: Clay Matthews has fracture in thumb

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Packers linebacker Clay Matthews exited Sunday’s win over the Lions with a thumb injury.

Per a league source, the thumb has a fracture in it.

Matthews left Sunday’s 22-9 win over the Lions in the fourth quarter.  It’s unclear whether the injury will limit Matthews’ ability to practice or play.

The Packers travel to Baltimore next weekend, and then they host the 3-2 Browns.