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Undercards refers to the lesser-known or less popular individuals or groups within a particular industry, sport, or event. These individuals or groups are typically not as well-known or highly regarded as the main or top performers, but still play a role in the overall event or competition. They may serve as warm-up acts, preliminary rounds, or supporting players, providing entertainment or competition before the main event. Undercards are often seen as an opportunity for up-and-coming talent to showcase their skills and potentially break into the spotlight.