The Argentine powered Barcelona to victory with a stunning brace against Zinedine Zidan’s men at the Santiago Bernabeu on Sunday.
Going into the game, he drew a blank versus Juventus in the Champions League in midweek, but his efforts saw him reach another landmark figure - his 500th goal for Barcelona in all competitions.
And the Cameroonian who played alongside Messi during his time at Camp Nou took to social media to laud the Clasico hero.
A post shared by Samuel Eto'o (@setoo9) on Apr 23, 2017 at 1:38pm PDT
A post shared by Samuel Eto'o (@setoo9) on Apr 23, 2017 at 12:20pm PDT