“I don’t say you must be a wrestler on the pitch, but you have this physical contact.
“And if you do those exercises, you get very well the feeling of balance, how you can fight in duels. That is very important.
“I am strongly in favour, especially of knowing how to fall, in wrestling, when you are disbalanced. In football it’s also balance and disbalance.
“It must be part of the education of the players.”
But Hiddink no longer has time for judo – as he is too busy sparring with partner Liesbeth.
He added: “I don’t do judo. Just boxing with my partner. She wins. I’m not joking. You know at the end women are strong!”