That will happen, however, after Friday's friendly with Bolivia with some of the fringe players fully aware that this is their final chance to impress as well as giving the 63-year-old time boss more time to assess the fitness of Diego Costa.
As they are most games, Spain are expected to win comfortably and Paddy Power price them at 1/7 (1.14) for the victory, while Bolivia are offered at 18/1 (19.00) and the draw available at 13/2 (7.50).
Away from the altitude of La Paz, Bolivia are not a particularly strong outfit, but that does not necessarily mean this will be a goal-fest especially as this Spain side has struggled to find the back of the net in prolific fashion.
In qualifying for the World Cup, La Roja scored just 14 goals in eight matches, with only Croatia and Greece scoring fewer among the qualified European nations.
Spain have failed to score over three goals in a game in over a year, a run stretching ten matches and the price of 13/8 (2.62) for under 2.5 goals in the game may appeal.
For slightly less bolder punters the price of 5/6 (1.83) for the first goal to come after the 21st minute looks like a terrific option. This bet has paid out in four of their last five matches, and while Spain should go on and win this game it might take a little while for them to get into their rhythm.
|First goal after 21 minutes at 5/6 (1.83) 2.5pt stake with Paddy Power|
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Phil Kitromilides is a sports journalist and TV presenter in Madrid