Event in Rio during Feb/March

Friend of mine is going to Rio de Jan (lucky bastard) end of Feb/beginning of March, and wants to see some MMA action. Does anyone know of any good upcoming events in Rio? Also is it safe to visit these events as a tourist/gringo?

I love watch good events in Rio and may be participate ina sumision tournament

Well, tomorrow you may watch the Rolling Stones for free at Copacabana beach in Rio, and Monday you might see U2 at the Morumbi in São Paulo.

i was actually there for the stones. good times.