Muniain shared a heartfelt message on social media, expressing his gratitude and love for the team.
"Forza San Lorenzo. I will be back, I will always be at your disposal," he wrote.
He described San Lorenzo as an addiction, a love that grew from the moment he joined the team and has only deepened with time.
"I thank both the club and the fans for the affection received," Muniain added.
During his farewell ceremony, San Lorenzo's leaders presented him with a commemorative plaque, acknowledging his dedication to the team's azulgrana colors and his seamless integration into the San Lorenzo family.
San Lorenzo's leaders expressed their appreciation for Muniain's time with the team and looked forward to his potential future return, perhaps in a different role.
"It will be difficult not to see him back on the pitch. Time will tell if there will be a return in a different role, perhaps in management," they said.
They concluded by thanking Muniain for his contributions and wishing him a swift return.