Patriots tight end Rob Gronkowski has torn his anterior cruciate ligament, according to a report from FOX Sports 1.

After catching a 21-yard pass in the third quarter, Gronkowski took a helmet to the knee from Browns safety T.J. Ward. Gronkowski had to be carted off the field as a result.

The Patriots' offense drastically changes without Gronkowski in the lineup. The Patriots will now rely on a slew of young receivers to fill in for the production Gronkowski provides on a weekly basis.

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Aaron Wilson covers the Ravens for The Baltimore Sun.