Russia kicked off the 2018 tournament against Saudi Arabia, looking for their first World Cup since their opening match of the 2002 event.
President Vladimir Putin was caught smugly shaking hands with Crown Prince Mohammed bin Salman after Russia scored the first of three goals against Saudi Arabia.
Footage shows Mr Putin shrugging before amicably offering his hand to the Royal as a sign of appeasement.
Prince Salman good-heartedly accepted the offer and the pair then returned to watch the game.
Russia couldn’t have hoped for a better start to the tournament, eventually winning 5-0 to go top of Group A.
President Putin and Prince Salman met shortly before the match to discuss future relations between their countries.
Prince Salman told the Russian leader he hoped for continued cooperation with Russia on global oil markets, adding their work together was beneficial for the whole world.
The hosts are 70th in the FIFA world rankings, three places below their opponents, but were widely expected to win their first international meeting with the Middle Eastern country.
The 2018 World Cup started earlier today with a stunning opening ceremony, which saw former Take That frontman Robbie Williams perform.
Headlining the opening show for one of the biggest sporting events in the world he performed at 3:30pm today, just 30 minutes before the opening game between Russia and Saudi Arabia.
Having helped to pull together another edition of Unicef’s Soccer Aid, the 90s pop icon performed in front of crowds as the sold-out Luzhinkki Stadium.
Robbie said: “I’m so happy and excited to be going back to Russia for such a unique performance. I’ve done a lot in my career, and opening the FIFA World Cup to 80,000 football fans in the stadium and many millions all over the world is a boyhood dream.”
But the music star sparked controversy during his show after he appeared to flip off the camera and swear during his performance.
Viewers and people in the stadium managed caught Robbie sticking his middle finger up at the camera during a performance of Rock DJ.
The moment was seen on FOX US coverage of the opening ceremony and appears to have come at the end of the short performance. It wasn’t shown on ITV coverage of the ceremony, which ended after an emotional rendition of Angels.