Question: Marcelo Saporito replaced whom?

Context paragraphs:
Simeon V. Marcelo: Simeon V. Marcelo (born October 21, 1953) is a Filipino lawyer and was the third Ombudsman of the Philippines.  As the Ombudsman, he acted as protector of the people against the illegal and unjust acts of those who are in the public service.  He investigated government officials, including members of the police and the military, who were suspected of committing graft and corruption.  Notably, he served as the principal private prosecutor in the impeachment case (and as head public prosecutor in the subsequent criminal prosecution for Plunder) of Former President Joseph Estrada, the 13th President of the Republic of the Philippines.  After 3 years as Ombudsman, he resigned due to serious health problems.  He was then replaced by Ma.  Merceditas N. Gutierrez.

Marquinhos Santos: Marcos Vinícius dos Santos Gonçalves (Santos, May 24, 1979), better known as Marquinhos Santos is a Brazilian soccer manager.  He was the coach of Paysandu, his first professional team, from 2012 to 2013.  He replaced Marcelo Oliveira.

Carlson Gracie: Carlson Gracie (August 13, 1932 – February 1, 2006) was a practitioner of Brazilian Jiu-Jitsu.  He was the eldest son of Carlos Gracie, founder of the Gracie Jiu Jitsu variant of Brazilian Jiu Jitsu with his uncle Hélio Gracie, and learned the art from his uncle and his father.  He was a member of the Gracie family.

Atracción x4: Atracción x4 is a 2008-2009 Argentine telenovela.  It was broadcast on Canal 13.  It replaced "Patito Feo" on Canal 13, in 7 pm.  It was directed by Marcelo Tinelli, and produced by Ideas del Sur

Marcelo Saporito: Marcelo Saporito is the head coach of one of the most iconic Brazilian Jiu-Jitsu academies in the world, the “Academia Carlson Gracie” in Figueiredo Magalhaes St., Copacabana.  He took the mammoth task of replacing the late Master Carlson Gracie at the helm of the gym, which he has done to perfection with over 200 team titles to this date.

Supporting paragraphs: Marcelo Saporito Carlson Gracie
Answer: replacing the late Master Carlson Gracie