The host nation defied critics and confounded expectations by easing past Egypt 3-1 on Tuesday (Jun 19), all but assuring their place in the last 16 of a World Cup for the first time since the Soviet era.
The pair meet in the World Cup this evening as Russian Federation take on Egypt in their second Group A game.
However, there is a caveat: Mo Salah will be subject to a late fitness test ahead of the game, and should he not pass that, he will not play any part.
Egypt earned themselves a penalty 20 minutes from time after Salah was hacked down, with the Liverpool striker picking himself up before smashing the ball into the net to reduce the deficit.
Their final game comes against Saudi Arabia on June 25, and after that he will be given an extended break before returning for pre-season.
Egypt poured into the box and as Salah looked to run beyond, Zhirkov tugged him back.
It will be scant consolation for the Egyptian King, however, as his talents are deserving of much more on the worldwide stage.
He hardly reacted to Russia's opener, an own-goal.
Russia's Denis Cheryshev has scored three goals at the World Cup.
Cuper said: "When we talk about 100percent, we have to look at the medical side".
"Today we'll have an important test for him to see how he does".
The first half of the thriller went goalless, however, both the team scored four goals in the rest of 45-minutes, entertaining the crowd. Russian Federation got their second little more than 10 minutes later when Egypt's defence was cut apart by a run from full-back Mario Fernandes, who then set up Denis Cheryshev to finish. I don't think the coach will focus just on Salah.
"Everything is possible after the World Cup", he added. "We did not defend well", said Cuper.
"Whether I should stay or not does not depend on me and we still have another match". I am sad he was not at the training camps with everyone else.