Possibly just a bone bruise and no ligament damage.
We will know more tomorrow.
#Patriots do not believe that TE Rob Gronkowski suffered a serious knee injury, source said. More tests tomorrow, but a sigh of relief.
— Ian Rapoport (@RapSheet) November 30, 2015
Prayers out to Gronk! Does not look good. pic.twitter.com/EwYlv0s2b4
— ACL Recovery Club (@ACLrecoveryCLUB) November 30, 2015