Matthijs de Ligt did not mince words as he admitted he was far from his best after enduring a dismal display on international duty.
The Netherlands entered their clash with Bosnia and Herzegovina as sizeable favourites and promptly delivered on their billing as Joshua Zirkzee fired them into an early lead.
Ermedin Demirovic capitalised on a defensive error from United's £43m summer signing to draw the visitors level before Tijjani Reijnders restored the Netherlands' lead before the interval.
Liverpool forward Cody Gakpo extended their advantage early in the second half before De Ligt was once again caught out allowing Edin Dzeko to put the pressure on.