Mariano Messera

Born in Posadas, Messera started his playing career in 1997 for Gimnasia La Plata, where he played 160 league games and scored 36 goals. In 2002, he played for Cruz Azul in Mexico before returning to Argentina to play for Rosario Central until 2004 when he had a short spell with Calcio Catania. In 2005, Messera played for San Lorenzo, O'Higgins in Chile, and Skoda Xanthi of Greece before returning to Rosario Central in 2007.

Messera has served as coach of the Gimnasia La Plata reserves. After Gustavo Alfaro was fired in May 2017, Messera and Leandro Martini was appointed joint caretaker manager. In November 2019, the duo was appointed caretaker managers once again after Diego Maradona left. However, two days later, Maradona rejoined the club.