Thiago was yet again left out of the Spain starting line-up for their Group E match against Poland.
The Liverpool midfielder was a second-half substitute for their drab goalless draw with Sweden in the opening game.
However, he was subject to criticism from the Spanish media for his 'erratic' cameo.
Saturday night's match was a must-win for both sides, in Spain's case it is an opportunity for them to move level on points with the Swedes after Emil Forsberg's late penalty in their win over Slovakia.
Spanish manager Luis Enrique named an unchanged midfield from the 0-0 draw with Sweden as Villarreal and Europa League-winning forward Gerard Moreno replaced Manchester City's Ferran Torres.
As a result, it was successive starts from the bench for Thiago.
Liverpool fans were all saying the same thing as they reacted negatively to the Spaniard starting on the bench for the second straight Euro 2020 game.
Spain's preparation for Euro 2020 has been far from ideal. Two players, Sergio Busquets and Diego Llorente, both returned positive tests for the Coronavirus.
Busquets' result came following their warm-up match with Portugal, as a result, they were forced to field their U21s in their final game after the entire squad had to self-isolate.
