The Contract would be frustrated, which in effect means its null and void and cant be enforced. Either side of a Contract has to receive consideration...Luai recieves $1.2M pa as consideration and in return Tigers receive him training and performing at NRL standard. If either side cant provide their side of the Consideration under the Contract. it is not a breach of Contract but the Contract is frustrated and both sides are released from the Contract.
TLDR....If Laui receives a career ending injury before 1/11/2024 it’s no skin off our back other than we are short an elite level halfback. No cost , no hit to the cap.