"When he was fit and playing for England, he was one of the best on the pitch.
"The games he played for England under me, I think he did very well, especially when we beat Germany 5-1.
"But when he got injured, he only played now and then and ended up on the bench a lot at Liverpool. But that's football and it happens now and then."
Eriksson is happy to see Heskey has rediscovered his form to earn an international recall.
He added: "He deserves to do well as a football player and as a man. As a man he is 10 out of 10.
"I don't know why some people didn't think he was so effective but that can affect you as a player, of course it can."