The small team was seen as an outsider, but unexpectedly made it to the finals.

outsider 是由 out（外面）和 sider（来自 side，表示"一方"）组成的复合名词，字面意思是"站在外面的人"，引申为"局外人、外来者"。 在体育比赛中，outsider 特指不被看好、实力较弱的参赛队伍或选手。