Askarov was reassigned to AHL Milwaukee on Sunday.
Askarov will defend the road goal Saturday against Washington, Stephen Whyno of the Associated Press reports.
Askarov was called up by Nashville on Wednesday, Robby Stanley of NHL.com reports.
Askarov (undisclosed) allowed five goals on 25 shots against AHL Chicago on Saturday.
Askarov (undisclosed) was recently hurt while playing for AHL Milwaukee, general manager Barry Trotz told Nick Kieser of Nashville Hockey Now on Wednesday.
Askarov signed a three-year, entry-level deal with Nashville on Monday.
Askarov has gone 1-1-2 while posting an impressive 1.53 GAA and .925 save percentage through four games with the KHL's SKA St. Petersburg this season.
Predators GM David Poile expects Askarov to remain in his native Russia for two more KHL seasons, Brooks Bratten of the Predators' official site reports.
Askarov was drafted 11th overall by the Predators at the 2020 NHL Entry Draft on Tuesday.
Askarov was named the No. 1 international goalie in NHL Central Scouting's 2020 Midterm Rankings.