Craig Shakespeare is hopeful that Wes Morgan is not facing another lengthy spell on the sidelines.
The influential defender returned after a month out with a back problem in Tuesday's Champions League clash with Atletico Madrid.
However, he was withdrawn six minutes from time of the 1-1 draw, which left Foxes fans worried that he may have suffered a recurrence of the injury.
But manager Shakespeare said: "I am thinking it is just cramp.
"Obviously he hadn't trained a lot in the last month and he was 50/50 [to play].
"It was more or less in the last three days where he was included in the group training.