The Candystrips trail Shakhtyor Soligorsk by a goal to nil after last weeks first leg defeat at the Brandywell.
The Derry boys landed yesterday and had a late training session at ground where tonight's game will be played.
With the only absentee being Dean Jarvis, Manager Perter Hutton has a near full squad to choose from and is spoilt for choice in attack.
The Derry boss says they can go and score tonight....
Also tonight Sligo Rovers have the chance to advance in the Europa league when they host Rosenberg at the Showgrounds.
The Western side lead 2-1 on aggregate going into the game.