Evening AFC West notes

The Chargers announced they have signed receiver/returner Micheal Spurlock. He had previous success under current San Diego special-teams coach Rich Bisaccia in Tampa Bay. With the earlier signings of Eddie Royal and Roscoe Parrish, the Chargers are loaded with receivers who can return. Of the three, only Royal is certain to make the team, but I’d expect Parrish, signed Tuesday, and Spurlock to compete for a spot.

It is not a slam-dunk that defensive end Dave Tollefson will sign with the Raiders. However, as of Wednesday evening, Oakland is still considered the favorite to land him. He is set to visit with the Titans on Thursday; other teams are interested. The Raiders might be willing to give Tollefson the most money. He will be a key backup if he signs in Oakland.

Defensive end Luis Castillo -- who re-signed with the Chargers on Wednesday after being cut in a salary-cap move -- is prepared to regain his starting job. He suffered a leg injury in Week 1 last season and was out for the year. The Chargers are high on young ends Corey Liuget and Vaughn Martin. At the very least, Castillo will be part of San Diego's rotation.