Commons injury worry for Celtic

Celtic midfielder Kris Commons (ankle) is an injury doubt for the William Hill Scottish Cup semi-final against Dundee United.

Victor Wanyama is available after winning his appeal against the red card he received at St Mirren Park two weeks ago.

Mikael Lustig and Adam Matthews are fit but Scott Brown and Lassad Nouioui are both still out while James Forrest (back) is expected to remain on the sidelines.

Provisional squad: Forster, Wilson, Ambrose, Wanyama, Izaguirre, Ledley, Commons, Stokes, Mulgrew, Kayal, Samaras, Watt, Hooper, McGeouch, Rogic, Zaluska, McCourt, Gershon, Lustig, Matthews.