That's pretty sad behaviour from the Argentinian. Sorry he got caught but I don't buy the excuses.
I wouldn't want a teammate playing for my club who thinks that's okay to say and just say sorry, my bad I was wrong can we forget it all thanks!
There has to be significant consequences for racism or zero point in talking about kicking it out of the game.
I get people make mistakes and can accept an apology but you need to take time away to go learn about your hateful words and impacts they have on others. That would show me you give a shit bout change and not just saying sorry to keep your fat pay cheque.