The 41-year-old looks back fondly on past World Cup curtain-raisers and is relishing being involved at Russian Federation 2018.
"The opening match is always a very symbolic one - it is that instant when you realise that the big moment you, as a player or fan, have been waiting for for four years has finally arrived", he said.
Williams said: "I'm so happy and excited to be going back to Russian Federation for such a unique performance".
FIFA's quirky rankings system to rate 211 men's national teams and decide seeding in World Cup draws is getting a reboot. There has been no mention of a performance of the official World Cup song, Live It Up, featuring film star Will Smith, Colombia-based pop star Nicky Jam, and Kosovan singer Era Istrefi.
Diego Godin is the captain of Uruguay
Shaikh Khalifa took part in a meeting of heads of continent's federation chaired by the FIFA chief Gianni Infantino. "I've done a lot in my career, and opening the World Cup to 80 000 football fans in the stadium and many millions all over the world is a boyhood dream", said Williams.
Fox Sports has the exclusive broadcasting rights to this year's World Cup, meaning you can catch the matches on Fox, Fox Sports 1, FoxSports.com and via the Fox Sports GO app.
The absence of Italy, Netherlands, Republic of Ireland and Chile, who were backed by 13,000 fans during last year's Confederations Cup, has raised the prospect of some games at the World Cup being played to smaller crowds than originally anticipated.
The New York Times reviewed the letters and first reported on them.
Salah makes World Cup headlines for Chechnya photo
Liverpool signed Salah from Roma last summer for £36.7million and the Egyptian went on to score 44 goals in all competitions. FIFA's approval of Grozny, the Chechen capital, as Egypt's training base came under scrutiny back in February.