The Paraguay international copped a three-match ban for spitting on Wolves defender Richard Stearman at Molineux Stadium last Sunday as his Latics lost 3-1.
He decided not to contest the suspension and has since released a statement saying he is sorry for his part even though he was trying to spit on the ground in frustration.
"I would like to apologise for my actions following the game against Wolverhampton Wanderers last Sunday," read a statement on the club's official website.
"I apologise to anyone connected to our football club for the offence and upset that my actions have caused. I reacted wrongly after being provoked but I never meant to spit on an opposing player.
"I was having a confrontation with Christophe Berra and in wanting to show my frustration, my intention was spit on the ground beside him, which was my way of answering the verbal abuse that I was receiving.
"Unfortunately, as you can see in the video evidence, my spit, instead of finding the ground, regrettably struck Richard Steadman in the chest, and I apologise to him for this.
"I apologise to my fellow players, staff, supporters and everyone associated with Wigan Athletic for the problems this has caused.
"I am hurting now because I know I cannot help my team-mates in the next three games, and for that I am very sorry.
"I will keep working hard to stay fit and be ready to help the team again as soon as the ban is over."