Real Madrid face Atletico Madrid in a crunch La Liga clash on Saturday (3.15pm).
The Spanish giants go up against their fierce rivals aiming to move closer to a first title since 2012.
Barcelona, meanwhile, trail by two points and face Malaga.
Tensions are running high as both clubs aim to secure silverware this season.
Lionel Messi is urging Atletico Madrid to beat Barcelona
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It is said the Argentina international has been messaging Atletico players urging them to stop Real from securing a crucial three points.
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He has also communicated with compatriot Diego Simeone, urging him to ensure Madrid do not take more control of the title race.
Messi is aware Atletico will also be out for revenge after losing the Champions League final to their rivals last season.
Sergio Ramos is fuming at Lionel Messi's dirty tactics
The report says Madrid defender Sergio Ramos has got wind of the texts taking place.
And the Spain international is reportedly livid at Barcelona for playing dirty.
Ramos is hellbent on helping Real lift a first title in five years and will do his utmost to ensure Los Blancos prevail come May.