Manchester City midfielder Yaya Toure says he owes his success to former Barcelona coach Frank Rijkaard.
Toure admits Rijkaard helped develop his game when he first signed for Barca.
"I had the luck of finding a great coach in Frank Rijkaard, who helped me progress," said Toure.
"For three and a half months, when the other players were with their national teams, he made me work tactically because I was a little messy. He showed me videos, it was tactical training."