LISTEN: Derek McInnes On Devastating 5-1 Loss To St Johnstone
The Dons were left stunned after they were beaten 5-1 by St Johnstone at home at Pittodrie, with boss Derek McInnes saying it was a "bad day" for Aberdeen.
The Saints picked up their first away points of the season, in a defeat that rocked the Dons.
But having started the season with eight consecutive league wins, Aberdeen have now suffered back-to-back defeats.
Now there is only one point between Aberdeen, at the top of the table, and Celtic.
Celtic beat Hamilton at New Douglas Park on Sunday.
We spoke to Boss Derek McInnes after the game.
This is what he had to say: