Arsenal boss Arsene Wenger says he'll gradually introduce Calum Chambers to the first team.
The former Southampton defender was signed by the Gunners last week.
"Can he play every week? Maybe not, he is 19 years old but he can play a major role," Wenger said.
"He has the qualities to impose his quality in this part of the team (central defence) and I believe he can play in defensive midfield as well.
"I believe he is good value for money. He is 19 and a promising talent.
"As a manager you believe in the players when you buy them - we spent a lot of money on him but overall, in the long-term, it is money well spent.
"When the players play at the top for a long period you can never say it's expensive. It is expensive now but I don't regret it."
