Al Nassr striker Cristiano Ronaldo admitted frustration after finishing the season without a trophy.
Ronaldo left Manchester United before Christmas ahead of signing for Al Nassr.
The former Real Madrid striker said: "Well, my expectation was a bit different, to be honest, I was hoping to win something this year, but it is not always as we think or as we want.
"Sometimes we need passion, consistency, persistence and determination to achieve the best. I still believe that next year we will improve a lot, let's say that in the last five or six months the team has improved a lot.
"Even in the league itself all the teams have improved.
"Sometimes it takes time, but if you believe and believe in your goal, I think everything is possible.
"I was hoping to win something this year, but we didn't... but next year I am very positive and confident that things will change, that we will go in a better way.
"So, let's believe that and let's work on that."