Derry have chance to go top
Unbeaten after three games, the Candystripes have one game in hand over their rivals at the top of the table.
Brian Cash (hamstring), Eamon Doherty (calf) and Barry Molloy (knee) are all absent, though Sean Hargan may return from a foot problem, though manager Stephen Kenny will once again use 19-year-old Ruaidhrí Higgins as the anchorman in midfield. Longford manager Alan Mathews has a selection headache with captain Barry Ferguson returning after illness.