Other CSKA players and staff members have given negative results in testing for the coronavirus.
Fresh-faced Germany were made to work harder than expected in their 3-2 victory over Australia in their Confederations Cup Group B debut on Monday with the world champions' young squad still adjusting to tournament life.
Australia head into their must-win match against Peru under pressure to score goals and with fingers crossed that France will bring their A-game against Denmark.
Hosts Australia swept into the quarter-finals of the Asian Cup in some style on Tuesday with a 4-0 hammering of Oman at Stadium Australia that ensured South Korea would go through from Group A with them.
Iran took a significant step towards qualifying for next year's World Cup finals with a 1-0 win over China on Tuesday that pushed Marcello Lippi's team closer to the brink of elimination.
A stunning Andre Carrillo volley gave Peru their first World Cup goal in 36 years before captain Paolo Guerrero grabbed a second as the Andean nation condemned Australia to a 2-0 defeat in Sochi on Tuesday and an early exit from Russia.
Forced to play their home matches in Malaysia due to security concerns, Syria had fallen behind when Robbie Kruse tapped in from close range in the first half but the underdogs refused to buckle to their vastly more experienced opponents.
The Western Sydney Wanderers hailed themselves Asia's biggest club after displaying trademark Australian grit to win the AFC Champions League on Saturday, three years after their formation.
Substitute James Troisi scored halfway through extra time in a pulsating final to give tournament hosts Australia their maiden Asian Cup title with a 2-1 victory over South Korea on Saturday.
News of all that's transpired on and off the football field
News of all that's transpired on and off the football field
South Korea squandered a chance to book their spot at next year's World Cup finals on Thursday after a 0-0 draw with 10-man Iran left their qualification hopes precariously balanced.