The Chilean’s goal secured all three points for the Turkish champions and Tello was delighted with their achievement.
“I got the ball under control and felt I had to shoot and fortunately it went in,” he explained to the press. “It is a historic goal – to win here for a team like Besiktas away to a great club like United is very satisfying.
“The whole team played well and did what we had to do. The key was working hard together, we stayed compact and after getting the first goal, we could have scored a second but had to hold out until the end to win. Fortunately we managed to do it.
“At home we are quite strong and play well and the fans will be behind us, especially after this win. We’re going to make it very difficult for CSKA Moscow in the final game.”