Underdog
An underdog was a term for the opponent who was at a disadvantage and expected to lose.

In 2369, while discussing Mullibok's pending eviction from Jeraddo with Kira Nerys as well as Kira's lack of progress in reasoning with the fellow Bajoran, Benjamin Sisko noted that she was used to sympathizing with the underdog, given her Bajoran Militia past, but she was now on the other side (of the fight). ()

In 2375, an illusion of Boothby encouraged Chakotay in his boxing match against the Delta Quadrant's supposed reigning champion, Kid Chaos, saying, "Everybody loves an underdog." ()

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