Haloti Ngata heads to locker room with knee sprain

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The Ravens are out to an early lead, but they might have a major problem.

Defensive tackle Haloti Ngata just went to the locker room for more evaluations, after suffering a sprained left knee.

Ngata was disruptive early, looking a younger version of himself. But an awkward landing immediately brought trainers out.

He was able to walk slowly off the field under his own power, but his absence will be a big concern.