Gustavo Siviero

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 later, which abruptly collapsed due to a vote of confidence in caretaker manager Antonio Moreno.

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.

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 was back in the third level 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 July 2012, Siviero was appointed at Real Murcia 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 started coaching in Mallorca's youth academy. In October 2010 he replaced former club player Goran Milojević (1992–95) at the helm of Segunda División B side CD Atlético Baleares, also in Majorca. His team won their group in 2011–12, but were eliminated from the playoff semi-finals by CD Lugo.

In July 2002, aged 33, Siviero moved to Albacete Balompié also in Spain, reuniting with Roa, with the pair being instrumental as the Castile-La Mancha team returned to the top division in their debut season after a seven-year absence. After only a combined six games in his last two years – with relegation befalling in 2005 – he returned to his first professional club Colón, retiring shortly after.

In 1999, Siviero was summoned by Argentine 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 then played 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). 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 domestic Supercup, a 2–1 away win against FC Barcelona (eventual 2–2 aggregate win).

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.

Gustavo Lionel Siviero (born 13 September 1969) is an Argentine former professional footballer who played as a central defender, and a current manager.