The Citizens managed to secure second place with their point at the Liberty Stadium, but the Italian was left to rue missed chances.
"I think we played well and we deserved to win," he told reporters after the game. "But we missed five incredible chances, Nasri, Silva and Dzeko all had good opportunities to score.
"I also think we should have had a penalty for a foul on Dzeko, I don't know why the referee didn't give it. We were motivated to win this game because we want to secure the second position.
"We have the final on Saturday and if we won today it would have been better for us."
City face Wigan Athletic in the FA Cup final on Saturday.