The playmaker had made the news after being snapped munching on a pack of Barcelona-themed crisps.
Isco has been linked to a possible blockbuster move to Camp Nou, and his choice of snack did nothing to quell the rumours.
But writing on Twitter after seeing Barca fall to a crucial defeat, he did not hide his glee at the result.
Que huevos @MalagaCF !! Enhorabuena— ISCO ALARCON (@isco_alarcon) 8 de abril de 2017
"Malaga showed balls! Congratulations," he expressed on the social network, after the club closed out a fine 2-0 victory.
Isco, a native of Malaga, started his career at Valencia but moved back to Andalucia in 2011.
Two years starring at the Rosaleda caught the attention of Carlo Ancelotti, who moved for the youngster in a €30 million deal in 2013.