Wenger says it's important to have the perfect mix of young talents and experienced players if they are to win titles at the end of the season.
"To be a real football player, you need to be 23 years old because you have learned your job, you can have a great game and after, sometimes an average game," Wenger said. "You can have one or two exceptional talents, like at the moment we have Hector Bellerin and Iwobi, but the core of the team has to be from 23 to 30. "If you look at the national teams, you never win a tournament with a young team, because it's more mental at some stage to win something big. "You need to have a certain level of experience."