Since the dissolution of the Soviet Union, Russia are unbeaten against African teams at the World Cup (W2, D1), including a 6-1 win over Cameroon in 1994 in which Oleg Salenko scored five. "He is an essential piece in our team", Cuper added. Egypt is still without a victory in six World Cup matches.
Cuper's team showed against Uruguay it will not defend as generously as the hapless Saudis, and Salah, who should make his first start, will relish the chance to torment Russia's aging defence.
Cheryshev was one of the heroes of Russia's opening win 5-0 against Saudi Arabia and another, Dzyuba, rattled in the third three minutes later.
Finally, Mourinho concluded that Russia's match against Egypt is crucial as the Uruguay match is a hard one, "The game against Egypt is the crucial match of the group".
As Russia, they have failed to reach the knockout stage of the World Cup in three attempts (1994, 2002 and 2014). "If not, they will have to go against Uruguay in the searching of point".
Russia's head coach Stanislav Cherchesov, a former goalkeeper, made his sole World Cup appearance in that game. "We are studying Egypt and we should be able to exploit their weaknesses".
The Egyptian Football Federation (EFA) laid that decision exclusively at Cuper's door, maintaining the 26-year-old was fit to face Uruguay but deemed not ready for the risk.
"But we aren't playing against one player, we have to take into consideration all the players".
Nevertheless, the African country still have a chance of qualifying from their group if they beat hosts Russian Federation in their second Group A encounter on Tuesday night at the St Petersburg Stadium in St Petersburg. "We understand how to do this and tomorrow you will see this".
Much now depends on the Uruguay-Saudi Arabia game on Wednesday in Rostov.
Egypt lost by the single goal to Uruguay the other day and can not afford another slip up. They had a good game against Uruguay but the last minute panic cost them the game.
The comprehensive defeat of a Mohamed Salah-led Egypt, led by Dzyuba's towering presence at centre-forward, was also unexpected, but Russian Federation coach Stanislav Cherchesov said he knew Dzyuba could provide what his side needed on the day.
At the weekend he needed the help of three team-mates to put a shirt on during a training session in Grozny. But we still have another match to play.
Salah pulled a goal back in the 73rd minute after he won and scored a penalty.
The Video Assistant Referee (VAR) system proved its worth to give Egypt a glimmer of hope when referee Enrique Caceres had initially awarded a foul outside the box rather than a penalty when Salah was pulled by Zhirkov.
The Pharaohs are still desperately seeking a first World Cup win in what will be their sixth game at the finals.