Crystal Palace boss Ian Holloway was shocked by their 3-0 friendly defeat to Crawley Town.
Goals from Billy Clarke, Sergio Torres and Mat Sadler clinched a morale-boosting win for the League One hosts.
And Ollie blasted: "It wasn't very nice to watch but the lads can learn from this, particularly the younger ones.
"It left me very disappointed and wasn't typical of a Palace team that goes out to represent this club."