Hamren feels injury prevented Gerrard from reaching the very top in the game.
Hamren said: "I really like him as a player. He has something extra. I'm sorry he has had some injuries which have maybe stopped his top level.
"But when he is not injured, he is a top player because of his skills to read the game and his skills to make the passes, especially the long ones. He has shown how good he is for England and his club."