He told liverpoolfc.tv: "Krisztian has great playing intelligence and is a very good goal-getter. He has improved physically but he must gain a little more experience, and, of course, he has to improve because the Premier League is a high level.
"Peter is still very young, and a goalkeeper that is 24-25 years of age is not an old player. He has got a lot of time.
"Naturally, we want to keep both of them because they could have a great future."