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.