Celtic’s Croatian defender Jozo Simunovic will be sidelined for up to six weeks with ligament damage.
The 21-year-old, who joined Celtic from Dinamo Zagreb in the summer, last featured in the 3-1 victory over St Johnstone on 23 January.
Simunovic, who missed Sunday’s League Cup semi-final defeat by Ross County, also had a spell on the sidelines in the first half of the season.
The Premiership leaders face nearest challengers Aberdeen on Wednesday.
Manager Ronny Deila bolstered his defensive options during the winter transfer window by bringing in Dane Erik Sviatchenko, 24, from Midtjylland.