The club stressed that there was a buyout clause of €100million in the contract of the 29-year-old. Mascherano arrived at Barcelona from Liverpool in 2010 and he has played 184 matches for the Spanish side.
He has won the UEFA Champions League (2011), two La Liga titles (2011, 2013), a King's Cup (2012), a European Supercup (2011), two Spanish Supercups (2012, 2014) and a FIFA Club World Cup (2011) with Barcelona.
Mascherano is with Argentina preparing for the FIFA World Cup™ finals. The South Americans are in Group F with Bosnia, Iran and Nigeria.