Real Madrid coach Santiago Solari has urged Isco to keep giving his all.
He was asked about Isco's situation and about the photo he shared on Instagram asking if he was overweight.
"I'm not on social media and didn't see Isco's photo," he said.
"Players need to give the best of themselves to be available and to then do the best possible.
"Then there are choices and different periods of form, all of this exists.
"The job of the coach is to try to pick well and avoid mistakes.
"There are players in football who play well and who do so constantly, which is why they start for 10 or 12 years, but nobody has played forever because they are called X.
"Diego Maradona is now a coach and Pele is with FIFA."