The rules for Wrestling differ in GURPS Martial Arts and Imperial Rome. Which is correct?
In Martial Arts, 1st Edition, Wrestling is P/A and defaults to DX or ST. In Imperial Rome, it is P/A but defaults to DX-5 or ST-5. In Arabian Nights, it is P/E, with DX-5 and ST-5 defaults. The skill descriptions in Imperial Rome and Arabian Nights are the same, and are slightly more detailed than the one in Martial Arts. This has all been cleared up in Martial Arts, 2nd Edition (p. 35), mirrored on p. CI136: Wrestling, like Boxing, Brawling, Judo and Karate, has NO default. It is a P/A skill. Only people who buy the Wrestling skill get the (skill/8) ST bonus in Close Combat and access to the special maneuvers that default from it.