Even by the standards of transfer deadline day, the arrival of world-class Argentines Carlos Tevez and Javier Mascherano at West Ham – back then a struggling Premier League club – was a stunning surprise.
Ten years on, the story continues to fascinate. Tevez and Mascherano weren't regularly picked by manager Alan Pardew – he preferred Marlon Harewood and Hayden Mullins – before Tevez returned to save the team from relegation under Alan Curbishley.
The South Americans went on to grace Liverpool, Manchester United, Manchester City, Barcelona and Juventus while the legacy of their transfer saw third-party ownership banned and a legal wrangle between West Ham and Sheffield United that lasted years.