Johnston felt something again, says O'Neill

Johnston lasted just 21 minutes before feeling discomfort; scans pending to determine severity of potential hamstring recurrence.

Alistair Johnston's return to action for Celtic was cut short after 21 minutes in the 2-1 win at Hibernian when he felt something in his hamstring. The Canada right-back had been sidelined since early August with a recurrence of the injury that kept him out for most of last season. Manager Martin O'Neill said Johnston and the medical team are unsure of the extent of the problem and that a scan will be needed to assess his condition. On a brighter note, central defender Cameron Carter-Vickers came through the final 17 minutes after missing since mid-September, giving O'Neill hope that key players are returning to fitness.