He told the club's official website: "I went a long time without any training and I wasn't fit, but now I am ready to help the team if the manager gives me the opportunity. I think I have a good chance of being in the team.
"Some people have told me I play like Claude Makelele; I make many runs and create many options for people. I will play any position if I have to.
"If the manager gives me a chance I will show all the Leeds fans what I can do and then I think I will have a chance to stay in the team."
Branco has been handed squad number 14 after receiving clearance to make his debut.
The Whites have a friendly in Greece on Sunday against FC Iraklis Thessaloniki to mark the official opening of the Kartazogli Stadium and Branco, 23, has experience of playing in Greece for Ethnikos and Panachaiki.