Barcelona star Lionel Messi says losing the Champions League semifinal to Barcelona made him "mad".

Barca missed out on the big trophies last season.

"We were close to winning the league and the Champions League," Messi said.

"I am madder about the Champions League because I think our elimination was unjust and also for missing that penalty. But this is already behind us.

"I am very happy for all the goals that I scored. My objective is the same every year - to keep learning, growing and improving."