Arnold (knee) is expected to miss 4-to-6 weeks due to an MCL sprain suffered during Sunday's loss to the Falcons, Ian Rapoport of NFL Network reports.
The Jaguars haven't yet confirmed the severity and details of Arnold's injury, but it looks like the tight end is set for a stint on IR. If his recovery timetable ends up being on the latter end of his window, he could end up missing the rest of the 2021 season. In any case, James O'Shaughnessy will step into the No. 1 role while Arnold is out, with Chris Manhertz also primed to see increased opportunities.