The BBC has an article on a recent discovery of gladiator remains in Ephesus:
Gladiators' graveyard discovered
By Monika Kupper and Huw Jones
2 May 2007
Scientists believe they have for the first time identified an ancient graveyard for gladiators.
Analysis of their bones and injuries has given new insight into how they lived, fought and died. Read on
There is also an earlier article: Gladiators 'fought in Cheshire' (17 February 2007). “Gladiatorial games, the bloodiest of ancient Rome's traditions, were probably held in the heart of genteel Cheshire, archaeologists say.”
The above image, courtesy BBC, is titled Gravestones helped identify the site as a gladiator graveyard.