It seems like there's been a lot of signings between AFC West teams this year. The Chiefs picked up former Raiders Stanford Routt and Kevin Boss as well as former Bronco Kyle McCarthy. The Chargers signed Jared Gaither and Le'Ron McClain. The Raiders hired a former Chiefs executive (hey, they have no salary cap space).
Battle, of course, is the former Chiefs running back. He had a career year last season with 597 rushing yards and previously indicated he was going to test the free agent market. The Chiefs have signed Peyton Hillis since he's been on that free agency tour.
The Chargers lost Mike Tolbert in free agency so they've been looking to replace him. Battle has been seeking a No. 2 role someplace.
If they add both McClain and Battle, you gotta wonder if Thomas Jones is picking that phone up.