Is it permissible for an animal sacrificed for 'Eid (Udhiyah) to have one testicle and the second be very weak?

It is permissible to sacrifice a castrated animal (khasī) and one whose testicles have been crushed (mawjūʾ). Thus, sacrificing an animal with one testicle or with crushed testicles is even more permissible, and this is without any dislike (karāhah). The Messenger of Allah, peace and blessings be upon him, sacrificed two white, horned rams, both of which were mawjūʾ (with crushed testicles) and khasī (castrated). Imam An-Nawawi mentioned that the mawjūʾ and the khasī are valid for sacrifice, and that this is the correct view.