Conversation so far:
When was Yen's first fight?
As Yen and Joey left the club, the gang followed and attacked Yen.
Yen beat up eight members of the gang who were later hospitalized.
Was Yen charged for this fight?
CANNOTANSWER.
What style of fighter was he?
both claimed that Donnie Yen is an incredible martial artist and would do well in authentic combat.
Who claimed that statement?
World class fighters, such as former Strikeforce Middleweight Champion Cung Le and former World Boxing Heavyweight Champion Mike Tyson.
Did he fight Mike Tyson?
However, it was ultimately Yen who fractured Tyson's finger while using his elbow to block Tyson's punches.

Question: When did he fight Tyson?
Self-contained rewrite: When did Donnie Yen fight Mike Tyson?