After his time in Ecuadorian football, he returned to his country and played in a second spell with Peñarol. Then, in the 1973-74 season, he joined Monterrey from the Uruguayan Liverpool, transferred by Peñarol for $32,000. Francisco excelled in an offensive team in Mexico, but they couldn't win a league title. He made his debut in July 1973, and in his first season, he scored 18 goals. However, an injury in the 1975-76 season kept him out for a significant part of the tournament. In just over three years with Rayados, Bertocchi scored 37 goals in official matches and bid farewell to the Monterrey fans with an emotional lap of honor in December 1976.[4]
Bertocchi ended his career in Mexico, playing for Tampico Madero during the 1977-78 to 1980-81 seasons and scoring 26 goals.[4]