As the visitors delivered the ball into the Japan box, Nagatomo had the easy job of knocking it away from goal.
His feeble clearance rebounded off a nearby team-mate, however, before an ulmighty slip from Nagatomo led to a scramble with the opposing forward.
Messi gets four-game ban
Nagatomo then threw himself between the striker and the ball, leading to a Thailand penalty.
Luckily for Nagatomo, Japan goalkeeper Eiji Kawashima saved the resulting spot-kick.
Watch the embarrassing mistake above!
