The season's first El Clasico had a disastrous start for Real Madrid on Sunday and Alvaro Arbeloa expressed his disbelief at Barcelona dominating so clearly without Lionel Messi.
Luis Suarez scored a hat-trick as Barcelona smashed Real Madrid 5-1 and the ex-Madrid defender could barely believe what he was seeing.
"It's hard to understand that this Barcelona, who are without Messi, are so superior," he tweeted.
Many have interpreted the tweet as a shot at coach Julen Lopetegui.