Celtic's Alistair Johnston goes off with fresh hamstring problem

Celtic right-back Alistair Johnston was substituted after 21 minutes of their 2-1 win at Easter Road over Hibernian. The 28-year-old Canada international had been out since early August with a hamstring injury, the muscle at the back of the thigh. Manager Martin O'Neill said he "felt something again". A scan will determine how long he is out.