Barcelona midfielder Sergio Busquets was disgruntled that his team failed to see out the win against Real Madrid after going a goal ahead in the second half.
Cristiano Ronaldo equalised in the 82nd minute to prolong Madrid's flailing title challenge and the 22-year-old believes if Barca had won at their rivals' ground, the league would have been out of reach for the capital club.
Barcelona have already wrapped up the league, there's no competition.