The Finnish international picked up his second caution of this season’s tournament in the second leg of Rangers’ thrilling 9-5 aggregate win over Royal Antwerp in the round of 32 last month.
It means Kamara joins team-mate Kemar Roofe on the suspension threshold. If either player is booked in Prague, they would be ruled out of the second leg against the Czech champions at Ibrox on March 18.
Rangers will be without defender Leon Balogun for the first leg after he received his third booking of the competition in the 5-2 win over Antwerp at Ibrox.
Slavia Prague have five players sweating on a potential ban for the second leg against Rangers.
Goalkeeper Ondrej Kolar, captain and left-back Jan Boril, central defender David Zima, midfielder Petr Sevcik and winger Lukas Provod are all one booking away from suspension.