A performance at the opening ceremony. (Photo: Reuters).

Luzhniki Stadium on the opening night. (Photo: Getty).

FIFA Legend and 2010 FIFA World Cup winner Iker Casillas and Russian supermodel and philanthropist Natalia Vodianova were seen next to the World Cup Trophy at Luzhniki Stadium. (Photo: Getty).

Iker Casillas held the World Cup trophy. (Photo: Getty).

Global music icon Robbie Williams performed at the opening ceremony. (Photo: The Guardian).

Arts and musical performances on the opening night. (Photo: FIFA).

Former Brazilian football star Ronaldo and Zabivaka, the official mascot of the 2018 World Cup, appeared at the Luzhniki Stadium. (Photo: Reuters).

Russian President Vladimir Putin delivers his opening remarks. (Photo: ITV).

The Group A opener between Russia and Saudi Arabia took place after the opening ceremony. (Photo: FIFA).