By Breaking Celebrity News Staff

Sylvester Stallone's son, Sage, was eulogized at an emotional funeral in Los Angeles Saturday morning.

The 36-year-old son of the Rocky star died of a suspected overdose July 13, and devastated friends and family inluding his father gathered for a private memorial service to pay their respects.

The service, held at St. Martin of Tours Catholic Church, was also attended by Stallone's wife Jennifer Flavin, his longtime friend and attorney Marty Singer, and Sage's mother - Stallone's first wife -- Sasha Czack.

Breaking Celebrity News previously reported details of the planned service with a source confirming it would be "a celebration of his life."

Sage's famous dad, 66, is overwhelmed at the tragic loss of his son.

"This agonizing loss will be felt for the rest of our lives," he said in a statement. "Sage is our first child and the center of our universe and I'm humbly begging for all to have my son's memory and soul left in peace."