Conversation so far:
What is S.L. Benfica?
Sport Lisboa e Benfica, commonly known as Benfica, is a professional football club based in Lisbon, Portugal.
Are there any other interesting aspects about the article about Javier Saviola?
Saviola was sponsored by sportswear company Nike, and appeared in commercials for the brand.
Did Javier Saviola make any money playing soccer?
Yes, he has held multiple year long million dollar contracts.

Question: How long did he play?
Self-contained rewrite: How long did Javier Saviola play soccer profesionally for?