Rosales denied the allegations in a statement posted on social media by MNUFC, but said he will not appeal or contest the league's findings or the punishment.
"I am addressing the recent three-game suspension issued by the league. I want to be clear: I did not use any discriminatory language," Rosales posted. "However, I acknowledge that my actions contributed to escalating tensions of the field. And for that, I sincerely apologize to the opposing player and to everyone affected.
"While I disagree with the league's decision to suspend me because I believe it was based on a misinterpretation, I respect their process and their commitment to fostering a safe and inclusive environment. I have always taken this situation seriously and am committed to doing everything I can to support a respectful and inclusive game."
The team offered support in a statement.
"The League concluded that Rosales used discriminatory language against an opposing player. While both MNUFC and Rosales acknowledge that the opposing player believed he heard discriminatory language, was negatively impacted and expressed his concern in good faith, Rosales adamantly denies using discriminatory language," Minnesota said in a statement. "After speaking extensively with Rosales and several members of our team, our club believes and supports him.
"Rosales is committed to participating in any steps the League recommends to continue strengthening and reinforcing a culture of respect and accountability across the league."