“Liverpool don’t need to change any of them if they’re all three happy and performing. The quality that the three have are second to none,” he said, referring to Salah, Mane and Firmino.
“But at times this season they haven’t all looked happy. These are the little idiosyncrasies that we don’t know what’s going on behind the scenes.
“Normally if you take them off the pitch and things are happy you’re not acting a little bit petulant, things of that nature.
“So, something is going on. If it’s a little bit of a bigger issue than a smaller issue, then that might have to be addressed.”