LAKE FOREST, Ill. (AP) — The undefeated Philadelphia Eagles acquired three-time Pro Bowl defensive end Robert Quinn from the Chicago Bears on Wednesday, a person familiar with the situation said.

The person spoke on the condition of anonymity because the teams haven’t announced the move. Chicago gets a fourth-round pick in return. The NFL Network and ESPN first reported the trade.

The 32-year-old Quinn is off to a slow start with just one sack and three quarterback hits. But he broke Hall of Famer Richard Dent’s franchise record with 18 1/2 sacks last year in a resurgent season.

The Eagles (6-0), the lone undefeated team, have one of the NFL’s best defenses.

With Quinn, a line that already has Haason Reddick, Josh Sweat, Javon Hargrave, Fletcher Cox, Brandon Graham and Jordan Davis becomes that much more daunting. He replaces defensive end Derek Barnett, who tore an ACL in the opener at Detroit.

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