Andrada, on loan from Monterrey, Mexico, is deeply remorseful.
"The truth is that I am very, very sorry for what happened. It is not good for the club, not good for the fans and especially not good for me as a professional player," Andrada said.
Andrada was one of three players who received red cards in connection with the brawl. The other two players face shorter suspensions.
The scandal received widespread attention in Spain.
