Israeli referee Lilach Asulin booked Brazil football legend Ricardo Kaka for no clear reason and then took a selfie with him in an exhibition match.
Rivaldo, Brazil's former star striker and World Cup winner, will grace the final of the Subroto Cup International Football Tournament
The Olympics will be held in Rio de Janeiro from August 5 to 21. This will be the first time the sporting extravaganza will be held in South America.
Rivaldo posted a social media message on Monday, saying he was receiving treatment in a Sao Paulo hospital.
Former Brazil great Rivaldo's son Rivaldinho joined the Porto-based outfit on a three-year deal from Brazil's Mogi Mirim.
Brazil crashed out of the quadrennial competition after they lost to Paraguay in the quarter-finals, sparking criticism about their style of play.
Rivaldo, who called time on his career in March last year, said he would make himself available for the Brazilian Serie B club Mogi Mirim.
Brazilian World Cup winner Rivaldo says he is considering retirement after suffering a rib and shoulder injury while playing for Kabuscorp in Angola's top flight.