Sullivan is now a veteran on a younger line Sullivan is now a veteran on a younger line By Joe Oberle Jun 6, 2012 at 5:26 pm ET • 1 min read Five-year veteran C John Sullivan is now a leader on the O-line that will have some news faces, and he is ready for more success than he has witnessed recently as a Viking: “We’ve had some ups; we’ve had some downs. Time for some more ups.”