Wenger was asked if he fear that his team is becoming a supply line for their rivals, both local and Europe, he responded: "Yes we are concerned by that".
He continued: "When you take players who are 16 or 17 years old and play them in the Premier League, you need to be brave".
"But you do it because the deserve it and secondly you hope that he club will be rewarded when these players are 23 or 24, and are in a position to deliver".
"So it is a concern".
Wenger also stated that at the moment Fabregas and Nasri are players of Arsenal Football
Club, but think things can change quickly.