The 27-year-old tore his muscle as the Europeans held Argentina in their opening game and he is in a race against time to be fit for their second World Cup game at the Volgograd Arena.
Coach Heimir Hallgrimsson admitted the possibility of losing the player for the tie with Gernot Rohr’s men.
“He is getting better every day. He is good hands. I am not going to hide that it is very unlikely that he will play,” Hallgrimsson was quoted as saying by Reuters.
“We are not afraid. It will not change the plans that we have decided before this game.”
The debutants will be hoping to compound the woes of the Super Eagles, who lost their opening game to Croatia.