Aberdeen will be without suspended defender Charlie Mulgrew for Saturday's SPL clash at St Johnstone.
Mark McGhee will be forced into a change at the back in the absence of Mulgrew, but he will have Darren Mackie available as his ban does not start until next weekend.
The Dons know a point will guarantee their safety from relegation, with Saturday's opponents currently five points ahead of the Dons in the SPL table.