Boxing Fights Before the Main Event
Puzzle 10 of Nordic Connections Hard Pack
Question is: Boxing Fights Before the Main Event
and the answer is: UNDERCARD
Word Meaning:
UNDERCARD — A list of minor or supporting contests printed on the same bill as the main event (primarily fighting or racing, such as the main fight at a boxing match or wrestling, horse or car racing, etc.), occurring before or after the main event.
Definitions from Wiktionary.