In Group-C matches of the UEFA Euro Cup football tournament tonight, Spain will lock horns with Croatia while Italy will take on Republic of Ireland. After thrashing Ireland 4-0, holders Spain may find Croatia a tougher nut to crack when they meet in Gadansk in a game that will decide who tops Euro 2012 Group-C. A 2-2 draw would put both sides into the quarter-finals even if third-placed Italy beat Ireland and a defeat would probably mean an early flight home. In group-B matches yesterday, Ronaldo guided Portugal into the quarter-finals when they beat the Netherlands, 2-1; while Germany defeated Denmark, with the same score.