Barcelona have agreed a contract extension with winger Cristian Tello that will keep the player at the Camp Nou for the next three-and-a-half years. The highly-rated 21-year-old made his first-team debut for Barça in November 2011 before going on to make 22 appearances last season, playing in La Liga, Copa del Rey and UEFA Champions League. This season Tello has made 16 appearances in all competitions for Barca, having represented Spain at this summer\'s Olympics. A club statement read: \"Barcelona announce they have reached an agreement with the player Cristian Tello to extend his contract until June 30, 2016. His buy-out clause has been set at €10 million. \"The player will sign his contract on Monday 17 December in the Barcelona offices.\"