Gustavo Siviero

Born in Laguna Paiva, Santa Fe Province, Siviero began playing professionally with Club Atlético Colón, moving in 1991 to Colombia with América de Cali. After only one season, he returned to his country and joined San Lorenzo de Almagro. Siviero then spent two seasons apiece with Newell's Old Boys and Club Atlético Lanús, always in the Primera División. In summer 1998, he signed with La Liga club RCD Mallorca alongside Lanús teammate Ariel Ibagaza (another Argentine, goalkeeper Carlos Roa, had done the same move the previous campaign); possessing an Italian passport, he did not count as a non-European Union player. In his first year, acting as replacement for Real Madrid-bound Iván Campo, he was an undisputed starter as the Balearic Islands side narrowly missed on UEFA Champions League group-stage entry; his official debut came in the first leg of the Supercopa de España, a 2–1 away win against FC Barcelona (eventual 2–2 aggregate victory on the away goals rule). In July 2002, aged 33, Siviero moved to Albacete Balompié also in Spain, reuniting with Roa, with the pair being instrumental as the Castilla–La Mancha team returned to the top division in their debut season after a seven-year absence. After totalling only games in his last two years – suffering relegation in 2005 – he returned to his first professional club Colón, retiring shortly after.

In 1999, Siviero was summoned by Argentina national team manager Marcelo Bielsa for a friendly with the Netherlands in Amsterdam. He did not make his debut there, however, and was never selected again.

Siviero started coaching in Mallorca's youth academy. In October 2010 he replaced his former teammate Goran Milojević (1992–95) at the helm of Segunda División B club CD Atlético Baleares, also in Mallorca. His team won their group in 2011–12, but were eliminated from the playoff semi-finals by CD Lugo. In July 2012, Siviero was appointed at Real Murcia CF on a one-year contract after turning down a new deal at Baleares. He was dismissed the following February with the team 16th in the Segunda División, far off their target of the play-offs. Siviero was back in the third division and Atlético Baleares in January 2015, on a contract that would extend itself by a year should they avoid the drop. He achieved this, but he and his staff were axed unexpectedly in November due to conflicts with the board. In 2016–17, Siviero managed Lleida Esportiu. Following a poor start to the season that saw them in a relegation place, he took the Catalans to eighth place, enough for a Copa del Rey berth but not for the playoffs; his deal was not renewed. Siviero joined Hércules CF of the third tier in July 2017, for one year. He was shown the door on 15 October after nine matches, split equally between wins, draws and losses. On 30 September 2019, after nearly two years out of the game, Siviero returned to the dugout with last-placed Enosis Neon Paralimni FC of the Cypriot First Division, his first job outside of Spain. He left the following January and was close to a return to Hércules weeks…

Mallorca

Supercopa de España: 1998