For those who are interested by gladiatorial combats, the historians listed below have written many books and articles these past years wiht the most recent knowledges about gladiators. They are especially experimental archeologist who try to understand in a scientific and historical way the ancient combat techniques by re-creating this combats with professional sportsmen, martial arts specialists, doctors, historians, etc.... :
From Germany : Marcus Junkelmann
From Italy : Dario Battaglia
From France : Eric Teyssier & Brice Lopez.