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Cristian Tello had a poor game.
Cristian Tello has been patient in the distant- and recent-past in terms of waiting for his chance.
Tonight was his opportunity to shine and show everyone that he is the rightful heir to the right-sided attacking berth.
To say that it was an opportunity missed is an understatement.
Whatever the reason, apart from a couple of shots and the odd run, the youngster was simply not at the races tonight.
This performance gives Gerardo Martino a completely justifiable reason to keep him on the bench next time, and he will really have to work hard on the training pitch to force himself back into the manager's thoughts after this performance.
Alexis Sanchez scoring the winner may further strengthens the case against Tello.