The versatile attacker is eagerly anticipating the Spanish side's first ever competitive match versus the Dutch giants and has hailed head coach Gerardo Martino
The Spanish champions have been in fine form in La Liga, winning their opening four games of the 2013-14 campaign, and the youngster is keen to get off to a winning start in European club football's elite competition as well.
"The Champions League is really important for us and the best way to go into the game against Ajax is with a league win behind us," he said at a press conference.
The 22-year-old then went on to discuss his relationship with head coach Gerardo Martino and added that Barca will only get better under the Argentine.
"My relationship with Tata is good. He's easy to talk to and is very approachable. He asked me to stay alert, work hard and my chances would come.
"We are doing okay, but gradually we will improve - we need to change a few things so that we aren't too predictable, but in essence we have to stay the same."
Tello also had his say on the stiff competition for places at Barcelona and he feels the Blaugrana have arguably the best attackers in the world.
"Alexis, Pedro, Neymar and I are all fighting for a place in the starting eleven. We've got the best players in the world up front and you have work very hard.
"I'm going into this season hungry to play and hoping to get plenty of game time."