The controversy stems from a photo that surfaced before the tournament began of Salah locking hands with Chechen Republic leader Ramzan Kadyrov.
Now multiple reports are emerging suggesting that the fleet-footed Liverpool winger, who injured his shoulder last month in the Champions League final against Real Madrid, may be on the verge of quitting the national team altogether after becoming embroiled in a political imbroglio in Chechnya where the Egypt squad was based.
The match in Volgograd came one day after Salah apparently told Egyptian team officials and teammates that he may retire from global play in protest against being used as a political symbol while the World Cup squad was based in Grozny, the capital of the mostly Muslim region of Chechnya.
"Muhammad Salah is an honorable citizen of the Chechen republic!"
Kadyrov, leader of Chechnya since 2004, is a controversial figure on the global stage because of his hard-line rule over his people and a series of contentious comments, particularly against the gay community.
At the dinner, Kadyrov granted Salah a copy of the decree and a badge.
Saudi Arabia winger Salem Al-Dawsari scored a last-gasp victor as Mohamed Salah´s Egypt suffered a 2-1 loss in their Group A dead rubber in Volgograd on Monday.
Essam El Hadary, the oldest player ever to appear at a World Cup, marked his record achievement with one outstanding penalty save for Egypt but was powerless to stop a second in a 2-1 defeat by Saudi Arabia on Monday.
"We want to apologise to all the Egyptian fans, who came to support us here in the three matches", he said after the match, according to beIN SPORTS. "We reached the cup for the first time after 28 years of absence.The players did their best, and I am sure that the future will be better", Salah, who scored twice in the tournament for the Pharaohs, said.