Koke has described Saturday's match against Barcelona as Atletico Madrid's "last bullet" as they seek to prolong La Liga's title race.
Reigning champions and leaders Barca are eight points clear of second-placed Atleti, with just seven more matches of the league season to come after the crunch meeting at Camp Nou.
Diego Simeone's side, surprise Liga champions in 2013-14, continue to punch above their weight in competing with Barca and Real Madrid for major honours.
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And Spain international Koke, while acknowledging the odds are stacked against his side, is determined to keep fighting for as long as possible.