Carlo Cudicini was given the nod to start in the side's match with PAOK but the Spurs manager has admitted that the American will return for Sunday's clash with Liverpool.
The Italian, who joined the club from Chelsea in 2009, impressed in Salonika after being chosen ahead of Heurelho Gomes, who was the club's starting shot-stopper last season.
However, Redknapp has confirmed that Friedel, a summer signing from Aston Villa, will maintain his starting spot when his side hosts Liverpool at White Hart Lane on Sunday.
"Yes, Carlo played well, but Brad Friedel has been fantastic.," Redknapp said after Thrusday's match. "At the moment, in the Premier League, Brad has the jersey. I think he's been magnificent. I'm lucky. We've got three top goalkeepers here.
The selection of Cudicini was somewhat of a surprise in Greece, with Gomes, who is thought to be unimpressed with the former Portsmouth manager's preference for Friedel, originally seeming the most likely candidate to start.
However, the Spurs boss insists that the Brazilian will be given time.
When asked why Gomes didn't start, Redknapp replied: "I just changed my mind. I thought it would be better for Carlo tonight. Gomes will get games. I will play him at Stoke in the Carling Cup next Tuesday."