Jack Pearce wants a reaction after Bognor crumbled to a demoralising 3-0 derby day defeat to Worthing in the eagerly-anticipated New Year’s Day showdown.
Former Rocks player Alex Parsons put the visitors on their way to victory with a tenth minute goal.
Further efforts from Joel Colbran and Jesse Starkey consigned Bognor to their first defeat against the Rebels for 20 years.
Bognor are back into BetVictor Premier action tomorrow when they host Margate.
And Pearce knows how they will react will be crucial if they are to reassert their own promotion claims after a loss which left them tenth and six points off the play-off places.
Pearce had no complaints about the scoreline, admitting his side were “shocking” although they might have levelled after Parsons had been gift-wrapped the opener when he robbed the ball off the Rocks defence.
Pearce told The Post: “The first goal they scored was a gift from us but they had created two or three chances by then through their own good play.
“The goal we conceded was disappointing and then their keeper made a fantastic save from a Dan Smith header, which would have been unjust for us to be 1-1 at half-time, but nevertheless was still a very good save. Had we scored that, maybe it would have given us a lift.
“But really it was down to their good play. They were hungry, they got to the ball first, played good stuff and created chances.
“To be honest, you’d have thought I given my team talk to them and not my lot!”
He added: “We hadn’t played for 18 days, we’ve lost Joe Cook, and we have had Harvey Whyte not well but on the day I have no complaints.
“It’s disappointing but it is what we do on Saturday now that becomes paramount because if we are going to get in the play-offs this year, we can’t afford to have performances like that.
“We were shocking in my opinion. On Saturday, we shall see if we have learned anything or we haven’t.”
Influential on-loan defender Cook has been recalled by Havant and Waterlooville.
Some good news for Rocks were attacking threats Brad Lethbridge and Mason Walsh were on the bench and came on while Portsmouth academy defender Harry Kavanagh made a solid debut to pick up home man-of-the-match honours.