Derry City Reserves and Cockhill Celtic meet in Derry on Sunday in a crucial game in the USL.
City have a game in hand on the leaders Cockhill and will close the gap to just a point if they can secure victory in this one.
Cockhill's good run of form continued at the weekend when they beat Bonagee United in their Knockalla Caravans Cup semi-final.
They'll meet Glengad in the final. Glengad surprised Derry City in the other semi-final on Sunday.