Verb
pit against (third-person singular simple present pits against, present participle pitting against, simple past and past participle pitted against)
(transitive, idiomatic) To set in opposition to someone or something else.
Two of the greatest tennis players will be pitted against each other in next week's final.
This long-awaited successor to the storied series will see players and their friends pit against the largest orc armies every assembled. Source: Internet
He would only be considered an underdog when pit against characters like Eiji Date who is a true monster in the ring and would give most other boxers a run for their money. Source: Internet