Collina also confirmed the video assistant referees will wear a full kit, identical to their colleagues on the pitch, at the World Cup.
Williams said: "I'm so happy and excited to be going back to Russian Federation for such a unique performance".
Federation Internationale de Football Association says it approved a new formula which rewards teams for playing more games, and it takes effect in the post-World Cup ranking on July 19.
BERLIN-They may not have qualified for the tournament, but travelers from the United States are among those most gripped by World Cup fever in terms of flight bookings to Russian Federation, with bookings up 66 percent, data showed on Tuesday. "We have to see when India plays at FIFA World Cup".
"The image that I will be presenting to the whole world will be very symbolic and associated with a dream coming to life. No one knows what will happen in the four weeks of the tournament, but everyone is sure that it will be memorable", believes "o Fenômeno" Ronaldo.
The 2018 World Cup is set to begin this week, with 32 nations meeting in Russian Federation to play for the biggest prize in global soccer. "Of course it is also an emotional one for the hosts".
Previous performers at the World Cup include Jennifer Lopez, Pitbull and Claudia Leitte in 2014 in Brazil, while 2010's three-hour event in Johannesburg featured performances from Rihanna, Shakira, Kelly Clarkson, Mariah Carey and Justin Bieber.
The 82-year-old's attendance at the World Cup could put him in close proximity to his successor, Gianni Infantino, who has sought to draw a line under past scandals.
Brazil looked shot to bits four years ago, but have recovered and are blessed with match-winners.
Additionally, SPN has unveiled a star-studded panel for Football Extraaa, the pre, mid & post-match live studio show that will be telecast in English and Hindi.