Rogic could miss Celtic's clash with St Johnstone

Celtic midfielder Tom Rogic is a doubt as the Ladbrokes Premiership leaders prepare to host St Johnstone after going off with a knock at half-time during the midweek thrashing of Hamilton.

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New signing Erik Sviatchenko will be introduced to the fans at Parkhead but is not yet ready to play and Dedryck Boyata is set to be afforded another week to recover from his hamstring issue.

Midfielders Scott Brown (knee) and Charlie Mulgrew (thigh) are not over their injuries while Ryan Christie (knee) is working on his fitness.

Provisional squad: Gordon, Lustig, Ambrose, Boyata, Simunovic, Tierney, Izaguirre, Johansen, Forrest, Bitton, Armstrong, Allan, Rogic, Commons, Mackay-Steven, Griffiths, Ciftci, Christie, Cole, McGregor, Nesbitt, Fasan, Bailly.