Spikes has been a free agent since being released by the San Diego Chargers on March 13. Being 36 years old, it's easy picturing why the Chargers would release Spikes, and eventually end up drafting the most talked about college linebacker last season in Manti Te'o.
Spikes visiting St. Louis is somewhat of a surprise, but since this is his first time visiting a team, he most likely didn't have a big market available to him. If the Rams do sign him, don't expect Spikes to start. This is what Rotoworld had to say about him:
Spikes, 36, hasn't received any interest since being released from the Chargers in March. If signed, he'll likely compete with Jo-Lonn Dunbar for time at "right linebacker" in the Rams defense. Pro Football Focus graded Spikes poorly in coverage and mediocre as a run-defender last year
Signing Spikes wouldn't push any of the starting three linebackers. He's lost a step, and after the year that Dunbar had, his job should be safe.
Spikes will either be a camp body or an emergency linebacker. He would be a role player for a cheap price. The Rams don't have good depth at linebacker, and if Spikes is willing to accept being a role player and come with a cheap price, why not sign him?