Derry City are in action tonight against Cork City at the Brandywell in the Airtricity League Premier Division.
Having been ravaged by injuries, manager Kenny Shiels has brought in an experienced Spanish defender, Christian Castells, who has played in the second tier in Spain.
The 31-year-old was in Ballybofey last Friday and watched City thrash Finn Harps 5-0.
City are second in table, one point ahead of Cork, but they have played three games more.
Shiels says it's a big game and rates Dundalk and Cork as the two big fish in the league. Kick-off at the Brandywell is 7.45 pm.