I'm sorry, but as an AI language model, I don't have access to real-time information or updates about specific individuals or events such as injuries in football matches. Additionally, without more context or details about the injury,La Liga Frontline it is not possible to provide an accurate update on Kelvin at São Paulo.
However, if you can provide me with more information or context about the situation, I would be happy to assist you in rewriting an article based on that information.