Erling Haaland scored a last minute winner as Borussia Dortmund beat Fortuna Dusseldorf 1-0 on Saturday.
The result means that Bayern Munich cannot be crowned champions if they secure a win over Borussia Monchengladbach later on Saturday.
Raphael Guerreiro also had a second-half strike disallowed after VAR adjudged the ball to have hit his arm beforehand.
After missing last weekend's 6-1 win against Paderborn, Haaland was named on the bench as he recovered from injury.
There was a lack of clear-cut chances in the first half.