The Patriots added quarterback Mac Jones to their practice report about 90 minutes after the release of their initial practice report. He was a full participant with a left thumb injury.
Fantasy Impact:
His thumb issue, obviously, isn't on his throwing hand so there probably isn't a whole lot here. As the story said, Jones threw three times the last time the Patriots were in action in Week 13 and then had a bye in Week 14 so it's not clear when this injury happened.