It was seen as a major coup when Belgium managed to nab Henry for the position of assistant to Martinez.
His work with the likes of Romelu Lukaku has been well publicized over the past few months. It is seen as a big reason for the striker's improvement.
And Henry's boss is thankful for his presence.
Martinez spoke about Henry in an interview with ESPN: "Thierry is someone who lives for football. He's a very, very special guy.
"He brings to the table his experience as winner of a World Cup... that's golden for you to have."