Kirk Cousins is "highly likely" to be the Atlanta Falcons ' starting quarterback Sunday against the Miami Dolphins , sources told ESPN's Adam Schefter on Saturday morning.

Starter Michael Penix Jr. suffered a bone bruise in his left knee during last week's loss to the San Francisco 49ers as the Falcons dropped to 3-3. Penix was limited in practice the past two days and listed Friday as questionable for Sunday's game.

On Friday, Falcons coach Raheem Morris said Cousins had taken "significant" reps this week in practice and more reps later in the week rather than earlier.

"I'm really confident in our backup," Morris said Friday of Cousins. "We're going to give [Penix] every opportunity we can give him. The kid is tough. He's a guy. He's a stud."

The expected start for Cousins co

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