Griffin is deal with a soft tissue injury to his left leg, Alec Lewis of The Athletic reports.
Griffin signed a contract with the Vikings on Tuesday, Alec Lewis of The Athletic reports.
Griffin finished the regular season with six tackles (five solo) and one pass defended in three games for the Panthers. He began the campaign with the Texans, recording 33 tackles (24 solo) and one interception on four passes defended in 10 games.
Griffin was waived by the Texans on Wednesday, Aaron Wilson of KPRC 2 Houston reports.
Griffin (calf) was a full participant at practice Thursday.
Griffin didn't participate Tuesday at OTAs due to a back injury, Aaron Wilson of KPRC 2 Houston reports.
Griffin is expected to be cleared from season-ending back surgery in two to three weeks, Demetrius Harvey of the Florida Times-Union reports.
Jacksonville placed Griffin (back) on injured reserve Wednesday.
Griffin (back) has been ruled out for Sunday's game against the Giants, Michael DiRocco of ESPN.com reports.
Griffin recorded nine tackles (seven solo) and two pass defenses during Sunday's 34-27 loss to the Colts.