Horndean face a tough test against Conference Premier Eastleigh in the Hampshire Senior Cup at Five Heads Park tonight (7.45pm).
And manager Dave Carter has called on his side to find their goal touch.
He felt their FA Vase exit at the hands of Ascot United on Saturday was largely due to wasted chances.
‘We dominated the tie but couldn’t score,’ he said.
‘Against Eastleigh we need to be far more clinical.
‘They probably won’t be relishing coming to Five Heads Park where the pitch can prove a great leveller.
‘We will go into the game believing we can surprise them.’
Carter is boosted by the return of Gavin Spurway from suspension but Gary Austin is still serving a ban.
Ex-Pompey forward Ashley Harris should continue.
Meanwhile, AFC Portchester boss Graham Rix insists his Vase heroes must maintain their focus against Andover New Street in the Wessex League Cup at Wicor Mill tonight.
The Royals enjoyed a Vase success over United Services on Saturday.
And they got their wish for a home draw in the third round – with Tonbridge Wells set to visit on Saturday, December 6.
But Rix is urging them to concentrate on tonight’s Wessex League division one visitors.
‘We are on a good run at the moment and it is important we keep it going,’ he said.
‘Slowly we are getting injured players back and are close to being at full strength.’
Striker Simon Woods is cup-tied, so Luke Sweeney – who made a big impact as a substitute in the Vase tie – could get another chance.
Elsewhere in the league cup, United Services will host premier division high-flyers Winchester City at Burnaby Road.
In-form Petersfield Town host division one side Cowes Sports at Love Lane.
In the premier division, struggling Fareham Town take on Verwood Town at Cams Alders.
The Reds are in a poor run of form and manager Matt Parr is hoping to see a turnaround between now and Christmas.