Middlesbrough forward Adama Traore has told Mundo Deportivo he believes he was not given a chance to prove himself at Barcelona.
Traore, 20, joined Barca's youth academy at the age of eight and was tipped by many to have a big future at the club.
But although he made first-team appearances as a teenager under both Gerardo Martino and Luis Enrique, he was sold to Aston Villa for around €10 million last year.
"I didn't leave Barca well," Traore said. "I left because I wasn't given an opportunity. If I had been given one, maybe I could say what I lacked.