Efe Ambrose is suspended for the second leg of Celtic's Champions League third-round qualifier against Legia Warsaw at Murrayfield.
The Nigeria defender was sent off in last week's 4-1 defeat in Poland which left group-stage aspirations up in the air.
Skipper Scott Brown and James Forrest remain out of contention with long-term injuries.
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Provisional squad: Forster, Matthews, Izaguirre, Van Dijk, Mulgrew, Lustig, Commons, Johansen, Biton, Kayal, Boeriggter, Berget, McGregor, Stokes, Griffiths, Pukki, Balde, Henderson, Zaluska, Gordon, O'Connell.