Everton boss Roberto Martinez denies he's a stubborn manager.

Martinez, who has predominantly played with a 4-2-3-1 formation in his time at Goodison, has often been accused of being stubborn.

"The people who say that I am tactically not flexible are people who do not follow my work," said Martinez.

"I have been innovative at every football club I have been at with my tactics, my shape and my approach.

"I am not someone who needs to defend myself but if you follow my work then I am probably one of the most flexible managers tactically that you could work with."