Jordy Nelson suffered two broken ribs in the Green Bay Packers' win over the New York Giants.
Nelson spent the night in the hospital.
"If he doesn't practice Saturday, then he won't play in the game," McCarthy said of Sunday's NFC divisional playoff matchup with the top-seeded Dallas Cowboys.
Leon Hall broke Nelson’s ribs when he lowered the crown of his helmet into Nelson’s body while Nelson was reaching up to try to catch a pass. Although Hall wasn’t flagged, he’s likely to be fined by the NFL.