Carlos Tevez and Lionel Messi trained at West Ham United's Rush Green training complex on Monday afternoon, as the build-up to Wednesday's international showdown with Croatia at the Boleyn Ground hots up.
Fans favourite Tevez was joined by a full Argentinian squad, Messi and all, as manager Gerardo Martino put his side through their paces in east London 48 hours ahead of kick-off.
Wednesday's prestige friendly will pit Tevez, Messi and company against their fellow 2014 FIFA World Cup qualifiers in what promises to be a hugely entertaining clash.
The 7.45pm kick-off could also see Argentina's former Hammers midfielder Javier Mascherano return to east London, while ex-West Ham striker Davor Suker is now President of the Croatian Football Federation.
Messi could be just one of a host of household names on show for La Albiceleste, with Barclays Premier League stars Sergio Aguero, Angel di Maria, Erik Lamela and Pablo Zabaleta all among the familiar faces at Rush Green.
Messi takes a breather at Rush Green on Monday afternoon
The two nations have met three times previously, with each recording one victory. The most-recent meeting took place in Switzerland in March 2006, when Messi and former Hammers striker Tevez were on target, but Croatia won 3-2.
Argentina will be playing in London for the first time since September 2006, when they took on South American rivals Brazil at Arsenal, losing 2-0. Croatia's most-recent visit to London was also an unhappy one, with England running out 5-1 winners in a FIFA World Cup qualifier at Wembley in September 2009.
The Stadium Store will also be open late on Wednesday evening, giving Hammers fans the opportunity to complete some early Christmas shopping!