But Redknapp has warned finding a replacement for Arrizabalaga will be a hard task, but it needs to be done.
“I am sure Frank Lampard will be looking in pre-season trying to get a new goalkeeper,” he told Sky Sports.
“If you are sure about your goalkeeper, he starts every game.
“So, Frank doesn’t think he is the right man. But it isn’t easy to find good goalkeepers.”