Niang had previously left the field to get treatment for an injury, but was waved back onto the field by a referee, as a Polish player tried to kick the ball back to the goalkeeper.
Check it out:
Another look at the goal:
World Cup 2018: Neymar hobbles out of Brazil training session
A little team dance to celebrate the sneaky — but completely legal goal:
Senegal would go on to win the game, 2-1.