Sport and autism is a tough one.
Our son John who is on the autism spectrum loves swimming but find taking part in organised games at school difficult. But it is important as a way of providing OT for children on the autism spectrum. You can read up about it here. With the importance of proprioception as an issue for autistic people them this article may be of interest!
Anyhow I found this video of great use and she shares some great tips on what sports work best for member of the autism community!