2 sentences for 弃权 (qì​quán — forfeit)

1. 由于对手弃权，这场比赛的胜负已成定局。

   yóu​yú duì​shǒu qì​quán, zhè chǎng bǐ​sài de shèng​fù yǐ chéng dìng​jú.

   The outcome of the match became a foregone conclusion after the opponent withdrew.

   Source: Dong Chinese Dictionary

2. 由于膝盖严重受伤，他不得不选择弃权，退出决赛。

   yóu​yú xī​gài yán​zhòng shòu​shāng, tā bù​dé​bù xuǎn​zé qì​quán, tuì​chū jué​sài.

   Due to a serious knee injury, he had to withdraw and forfeit the final.

   Source: Dong Chinese Dictionary