Bale put United on alert after Real’s Champions League triumph against Liverpool on Saturday night, with the winger revealing he may leave to get more game time.
And Redknapp reckons Jose Mourinho must sign Bale this summer if United are to keep up with City in the Premier League.
“I’m intrigued to see what he does next. I can’t understand why anyone would want to leave the lifestyle Gareth has in Spain but he wants to play more regularly,” Redknapp wrote in his Daily Mail column.
“Everything points to a return to the Premier League. We have the best managers – now we need a ‘Galactico’ player.
“I wrote in my last column of the season that if Manchester United want to stop playing boring football, Jose Mourinho should go out and sign him