Rishard Matthews is expected to step in as the Dolphins slot receiver. Brandon Gibson is done for the season after sustaining a season-ending knee injury in Week 8. It leaves a big hole as he posted a 30/326/3 line through seven games. The physical Matthews has a major opportunity in front of him, but he has very little experience playing inside and his feel for getting open is in doubt. We wouldn't make an add outside of 16-team formats.