Mistakes are part and parcel of football, but the costly nature of any error can sometimes lead to the guilty player’s head dropping, owing to the disappointing nature of his blunder.
It would have been easy for Achraf Hakimi to lose his way after loose marking from an Angel Di Maria corner saw Neymar ghost past him into the space between the wing-back and Mats Hummels in the six-yard box to put Paris Saint-Germain 1-0 ahead of Borussia Dortmund on the night and on aggregate in their Champions League Last 16 bout.