Mackay all right for Saints
St Johnstone, Latest news update:
St Johnstone will give a late fitness test to calf injury-victim Dave Mackay ahead of Saturday's clash with St Mirren.
The defender was expected to train with the rest of the squad on Friday and, if he comes through unscathed, will have a fitness check ahead of the SPL encounter.
There is more good news for Derek McIness up front, with strikers Peter MacDonald (knee) and Steven Milne (hamstring) available after training this week.
Full-back Danny Grainger also comes in contention following suspension, but Stuart McCaffrey is still missing with a groin problem.