Can players without a disability play?

Yes. The IRL guidance says teams may be a mixture of male, female, disabled and non-disabled players, with no age stipulations. A maximum of two non-disabled players per team may be on the field at any one time.

A disabled player is a player who has a physical impairment based on a permanent health condition. A non-disabled player is a player without a disability. Players classed as having limited movement wear an armband for identification.