Valencia owner Peter Lim chose to sack Marcelino yesterday after feeling insulted by the coach over the summer, it has been revealed.
Marca says the breakdown in relationship with owner Lim led to Marcelino's sacking.
Lim feels that Marcelino showed a lack of respect over the course of the summer and decided to get rid of him over two weeks ago.
Marcelino had been critical of the club's activity in the transfer market, with Lim seeing that as a personal insult.
"The club has told me that Rafinha won't be coming, the squad is a little short," Marcelino said during the summer.
"If Rodrigo leaves, we will have to change our objectives.
These kinds of comments have left Marcelino's position in charge of Los Che untenable and, according to various club sources, his sacking was inevitable.