Hi Scoop,
When we were there last April, I noticed in the reception area of our hotel (SOL COSTA DAURADA) there was a stand offering tickets to the next match. You were requested to check wit the Hotel Reception, and when I did she could show me what tickets were still available and at what price, and if I had wanted I could have booked them there and then. The tickets also included return coach from outside the hotel.
So, you should have no problem getting them.
Tom