Craig: St Mirren trio may return

Skipper Steven Thompson (groin), Isaac Osbourne (shin) and John McGinn (knee) are all back in training and could be declared fit for the fourth-round meeting at St Mirren Park.

Player/coach Jim Goodwin, however, completes the final match of his three game ban for elbowing Dundee United forward Aidan Connolly, while Ellis Plummer and Gregg Wylde (both groin) are also sidelined.

Provisional squad: Kello, Naismith, McAusland, McLean, McGinn, Tesselaar, Plummer, Caldwell, Thompson, Osbourne, McGinn, Ball, Reilly, Marwood, Drury, Brown, Williams, Kelly, Hughes, Baird, Morgan, Yaqub, Ridgers.