Busquets felt the Catalans should have won the match.
Gerard Pique scored an freak own goal that secured the draw for Osasuna.
“Football is all about the result and we are not happy because we thought we had the three points,” Busquets was quoted as saying by the club’s official website.
“The move that led to their goal was very unfortunate. The whole squad is down because giving it away so late hurts.”
“I felt that we played well and deserved to win,” Busquets continued.
“After we went ahead we had three more clear chances to score a second but could not take advantage of any of them. I suppose one day, something like this had to happen.”