FOX NFL reporter Mike Garafolo reported the news on Twitter and says Gronk will have an MRI on Monday to confirm the extent of the injury.
Gronk could not put weight on his leg after getting hit low by Ward. He was carted off the field and it was pretty obvious he suffered a serious injury.
Gronkowski has had some rotten luck lately. He broke his forearm last season while protecting on an extra point. He re-broke the forearm after returning early from the first injury. He had four surgeries on the forearm in seven months because of infections. He also had surgery on his back.
If Gronk needs surgery for a torn ACL, that will mean six surgeries for him since last November.Google+