Real Betis midfielder Petros believes his side know how to play to beat Real Madrid and having home advantage will be huge for the side.
Los Verdiblancos have won only one of their three home matches in LaLiga this season – defeating Malaga in their last home game after draws with Deportivo and Granada – but the Brazilian midfielder is confident they can produce a big result against Zinedine Zidane's side.
"It will be very important to win and it would convince people that we can do something big this season," Petros told Canal Sur Radio's El Pelotazo programme.
"We have to win in front of our home fans and we have a plan on how to beat this side.
"I obviously cannot say what we are going to do but we have been working on various things in training and I strongly believe we can do it.
"Madrid maybe aren't in great form at the minute but they will be desperate to win as much as us."
