I went to the confederation cup last year in Rio. Due to accomodations being so expensive during the WC I have decided to go somewhere a little cheaper. I have CAT 1 tickets for the first 4 matches in Rio. If interested please send me a message. If I don't sell them I'm just going to donate them to the hostel I stayed at while in Rio.
P.S. Harmonia in Ipanema is a great hostel with great people.