The Verdict: Clear Path
You can apply for residence on the strength of your contract. The Brazilian entity contracting you provides the core documents, and the contract should describe the work specifically.
Brazil provides residence for artistic and sporting work, and athletes contracted by a Brazilian club or entity have a dedicated rule (Resolution CNIG 47/2022). A signed contract opens it; reputation alone does not.
The permit tends to follow the term of the contract. Citizenship comes by naturalisation after four years of residence, and a commended artistic or professional record can cut that to one year.