Boxer who lit the cauldron at the 1996 Olympics (3)
![Ross](/clue/static/ross-mug.min.png)
I believe the answer is:
ali
(Other definitions for ali that I've seen before include "Muhammad ___ (or MacGraw?)" , "Muslim name" , "Muhammad's son-in-law" , "Mohammed . . . (boxer)" , "Cassius Clay became Muhammad ..." .)