Catalan?

Check out this interview of Rafael and Toni Nadal. I'm not sure if they are speaking Catalan or Mallorquí, the local dialect. It is interesting to listen to, either way: the words sound enough like Castilian Spanish that I could understand without the subtitles, but also different enough that I had to concentrate in order to understand.

A lot of the interviews done for the Barcelona were also in Catalan, and are available on Youtube if you're interested.