Jose Mourinho on Pep Guardiola: 'When one enjoys what he does, one does not lose his hair'

Few coaching rivalries provide the entertainment that comes from the one between Jose Mourinho and Pep Guardiola.

The two managers have consistently bumped heads since their time together at Barcelona, with their most recent clash reportedly coming at UEFA's two-day meeting of leading coaches in Nyon, Switzerland, where Mourinho and Guardiola argued about the grass length of football pitches.

Although the meeting is now over, the war of words apparently isn't, as El Confidencial published a quote from the Chelsea manager regarding Guardiola's lack of hair.

"When one enjoys what he does, one does not lose his hair, and Guardiola is going bald. He doesn't enjoy football," Mourinho is quoted as saying.

We can't all have the full head of hair that you have at age 51, Jose.