The Brazilian midfielder spent four seasons at the Santiago Bernabeu before rejoining the Rossoneri in the summer.
“I didn’t live a happy moment in Spain,” Kaká confessed while speaking to as.com.
He went on to comment on the upcoming Clasico and state his confidence in former coach Carlo Ancelotti: “Ancelotti will win 2-1 against Barça.”
The 31-year-old made the move to the Spanish giants in 2009 in the same summer as Cristiano Ronaldo for a transfer fee of close to €70 million.
His time at Los Blancos was far from smooth sailing, however. His four years in Spain were plagued by injury and a general inability to find form and a regular place in the team.
Kaká recently returned from injury to make his second San Siro debut in the victory over Udinese and played from the start against Barça, showing in these games that he might still have something to offer to Il Diavolo.
Follow Conor Clancy on Twitter: @concalcio