Lee Johnson admits there will be a lot of 'soul-searching' before he picks a side for Sunderland's next game following their crushing 6-0 defeat at Bolton.
The Black Cats suffered their heaviest ever third-tier defeat as they imploded at the University of Bolton Stadium.
It is not the first time this season Sunderland have suffered a humbling, and Johnson knows he cannot afford any repeats if the club is to maintain a credible automatic promotion challenge.
