O'Shaughnessy caught three of five targets for 29 yards during Sunday's 21-14 loss to the Falcons.
The 29-year-old played 59 of 73 offensive snaps in his first game since Week 2, which was in part due to starter Dan Arnold exiting early with a knee injury. Arnold is set to miss at least the next month with a sprained MCL, so O'Shaughnessy now finds himself atop Jacksonville's depth chart at tight end. O'Shaughnessy has nine receptions for 77 yards in his two full-game appearances this season, so he clearly has a decent rapport with rookie quarterback Trevor Lawrence and could have limited fantasy appeal.