Barcelona have confirmed Gerardo Martino as their new coach.
The Primera Liga champions have moved swiftly to replace 44-year-old Tito Vilanova, who was forced to relinquish the post due to his cancer setback last week.
Nicknamed "Tata", 50-year-old Martino last night led Argentinian side Newell's Old Boys to the Copa Libertadores semi-finals but has signed a two-year contract with the Blaugrana.
Martino is the sixth Argentine to manage Barcelona
Martino led Newell's Old Boys to the Argentinian Clausura title last season but his outstanding accomplishment was leading Paraguay to the 2010 World Cup finals, their best ever finish at the tournament.
Paraguay were narrowly beaten 1-0 by Spain in the quarter-finals, as Fenerbahçe striker Óscar Cardozo had a penalty saved by Iker Casillas at 0-0.
David Villa, who recently left Barça for Atlético Madrid, scored the game's only goal.
Martino was also in charge of the Paraguay team which reached the 2011 Copa América final, only to be defeated 3-0 by Uruguay.
MARTINO FACTFILE
1962: Born November 20 in Rosario, Argentina.
1980-90: The attacking midfielder joins Argentinian club Newell's Old Boys and makes 392 league appearances, scoring 35 goals in 10 years. He wins the Primera Division in 1988.
1991: Spends a year playing for Tenerife and earns his one Argentina cap under Alfio Basile.
Martino celebrates Paraguay's win on penalties against Japan three years ago
1991-94: Returns to Newell's Old Boys for three years and wins two more Argentinian titles.
1994-95: Represents Lanus for one season before returning to Newell's Old Boys.
1996: Enjoys short spells with Ecuadorian club Barcelona Sporting Club and then O'Higgins of Chile.
1998: Takes first coaching job with Brown de Arrecifes.
1999: Joins Platense as coach.
2000: Works as Instituto's head coach.
2002-03: Leads Libertad to two Paraguayan titles.
2004: Claims his third Paraguayan title with Cerro Porteno.
2005: Spends a season with Colon.
2005-06: Returns to Libertad and wins his fourth Paraguayan title in 2006.
2007: February - Becomes Paraguay national team coach and is named South American coach of the year.
2010: June - Takes Paraguay to the World Cup in South Africa and guides the nation to the quarter-finals, where they are beaten by eventual winners Spain.
Martino watches on as Paraguay play Spain in South Africa
2011: After Paraguay lose the Copa America final to Uruguay, he steps down as national team manager.
2012-13: Returns to Newell's Old Boys as manager and wins the Clausura in 2013.
2013: July 23 - Agrees two-year contract to become head coach of Barcelona, replacing Tito Vilanova.