Well, no, not really..
Freezing sperm is a sensible idea for cancer amongst other diseases. It's not so hot here since if he does get it it can survive in the body for at least 4 months, hiding out in various places including the testicles and blood. Which means, whether the baby is made with frozen wrigglers or not, any pregnancy within 12 months of a Zika infection is a bad idea, not to mention if the partner is infected I've not seen data on how long it lasts in a human female. If it's like some other nasties it could sit in places like the spleen for years.
If I was one of these athletes potentially being put in this situation I'd be saying hell no.
But then maybe I've been playing Plague Inc too long..