Hartley an injury doubt for Celtic

Celtic manager Gordon Strachan has an injury worry over Paul Hartley for the Old Firm derby.

The midfielder has a slight strain but Strachan expects him to recover in time to face Rangers at Parkhead.

Scott Brown remains suspended for the crucial Clydesdale Bank Premier League contest.

Provisional squad: Boruc, Hinkel, Caldwell, McManus, Naylor, Nakamura, Donati, Robson, McGeady, McDonald, Samaras, Vennegoor of Hesselink, M Brown, Wilson, Sno, Hartley, Hutchinson, Killen.