Tottenham boss Harry Redknapp has been told to stay away from football for several weeks after his heart op.
Redknapp had previously talked of being away from the dugout for two weeks but he has now admitted it could be longer.
"I have got to listen what the doctors tell me and not get too stressed out," he told Sky Sports News.
"Stress is what causes most of the problems anyway.
"I will be fine, I have just got to take my time and when I am ready come back and get on with it but not before I get the go-ahead from the people in charge.
"They have said I shouldn't even think about football for four to five weeks and get myself stressed. I will see how I go but I hope to be back before then."