Philadelphia Eagles safety Sydney Brown. Eric Canha-USA TODAY Sports

Watch: Eagles' rookie Sydney Brown has 99-yard pick-six

The Philadelphia Eagles passing defense has been their biggest weakness throughout the season. However, it's stepping up against the Arizona Cardinals.

With 11:44 remaining in the second quarter on a third-and-7, Cardinals quarterback Kyler Murray appeared to have a miscommunication with one of his wide receivers, and Eagles rookie safety Sydney Brown intercepted him. The third-round pick out of Illinois returned it for a 99-yard pick-six. It's the first interception of his career.

Entering Week 17, the Eagles (11-4) rank 27th in the league in passing yards allowed (250.8). Despite the secondary struggles, Philadelphia is still in a good position. If it wins its next two games, it will secure a second consecutive NFC East title.

Meanwhile, Murray has struggled since he returned from an ACL tear. In six games, the former Pro Bowler has completed 62.3 percent of his passes for six TDs, four picks and a below-average 39.6 QBR.

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