Wright one of three Saints absentees against Celtic
St Johnstone will be without Drey Wright for the visit of Ladbrokes Premiership leaders Celtic.
The wide player suffered a hamstring injury against Kilmarnock on Saturday.
Murray Davidson remains out with a fractured arm while Anthony Ralston cannot face his parent club.
Celtic have a fitness doubt over Jozo Simunovic but Ryan Christie and Kristoffer Ajer are back in the squad.
Odsonne Edouard has shaken off the toe knock that restricted him to a substitute’s appearance on Saturday but Ismaila Soro is not ready to feature.
Jeremie Frimpong is awaiting the results of a scan on the injury he suffered against Kilmarnock while Mohamed Elyounoussi (foot), Hatem Abd Elhamed (groin) and Nir Bitton (knock) are also out.
St Johnstone provisional squad: Clark, Duffy, Booth, Tanser, Vihmann, Gordon, Kerr, Holt, Swanson, Craig, McCann, O’Halloran, Kane, May, Wotherspoon, Hendry, Northcott, Parish.
Celtic provisional squad: Forster, Bauer, Hayes, Ajer, Bolingoli, Taylor, Jullien, Simunovic, Brown, McGregor, Arzani, Rogic, Ntcham, Johnston, Forrest, Edouard, Bayo, Klimala, Griffiths, Welsh, Dembele, Gordon.
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