Finalist in the previous edition, Spain was frustrated in a draw with Portugal and then snatched a point against the Czech Republic before heading to Stade de Geneve.

Luis Enrique's side was not entirely convincing but got its win at the third time of asking, with Switzerland unable to respond to Sarabia's 13th-minute strike.

Bigger aims are on the horizon for La Roja, yet they remain firmly in contention for another Nations League run as a result.

Early Spanish pressure told when Marcos Llorente got in behind and squared for a simple Sarabia finish, with the scorer given the benefit of the doubt following a marginal offside call and lengthy VAR review.

Switzerland's only first-half attempts were miscued headers from Breel Embolo and Eray Comert, who each might have done better, although Sarabia also passed up an opportunity for his second when he blazed over.

Chances were even more sparse into the second half, with Switzerland gaining a foothold without really threatening.

Llorente whipped a left-footed shot wide, but Sarabia had continued to be the game's most dangerous player and his withdrawal just past the hour mark teed up a low-key finale.