The Chargers have signed free agent TE David Johnson to a two year deal. Johnson missed all of 2012 due to an ACL injury. He was activated from the PUP list at the beginning of the 2013 season, but only saw limited snaps until injuring his wrist during week 6 against the Jets.
Johnson spent the remainder of the 2013 season on IR due to his dislocated wrist. While Johnson was a solid blocker, and not properly utilized during much of his time here, I think many will be glad to say that the David Johnson experiment is over.