Spain has dominated group 4 in the UEFA Nation league as they have been unbeaten in that group as theyhave won switzland who are in button in their group by 3-2, if Spain hadn't qualify I don't think they will gamble against Switzerland by only winning with low goal margin.
Spain has been outstanding in group 4 as they have won all 5 matches if they should continue this way they will definitely go far in the league if not even playing final.
Denmark will qualify in group 4 if they end up playing draw with Serbia who stand in 3 position while Denmark ahead of Serbia as they accupy the second position which will make they qualify along side Spain who finish 1st.
Whether they've qualified or not, they won't gamble with any of their games. Luis de la Fuentes has set a standard for his boys that they don't regard any game as minor, rather that it is important to collect all three points and assert their dominance in every game they play.
The game between Spain and Switzerland was a memorable for the natives of Tenerife being that the last time a senior men's football was held in that venue was 28 years ago so I'm sure fans would be especially glad that they were able to get all three points from a late penalty scored by Bryan Zaragoza.
Switzerland, who couldn't save themselves when they met Serbia from being relegated were hoping to get something from Spain, which is quite impossible because Spain have a balanced squad that will make such a hope be unrealistic and though they played fine football, their defense was really leaky and you can trust Spain to take advantage.