Redknapp is waiting to hear whether Beckham would be given permission to move to White Hart Lane on loan until the Major League Soccer season starts in March.
The Spurs boss has also refused to rule out buying the former England captain if he proves a huge hit in north London.
"I haven't been to America to watch him play," he said. "But it's not like when I was at Bournemouth and we took George Best.
"We're not trying to fill the stadium, are we? You can't get a seat here anyway. I just genuinely feel he could come here and do a good job for us.
"When you're looking to hit Crouchy (Peter Crouch), if you're looking for someone to drop a ball on his head from set plays, free kicks, corners, there's no-one better in the world."
Source: PA
Source: PA