Redknapp was the manager of Tottenham from 2008 until 2012, while Bale, now at Real Madrid, was on the books of the North London outfit from 2007 to 2013.
Keys has revealed that the former West Ham United and Queens Park Rangers boss wanted to sell the Wales international winger because he considered him unlucky.
“Good old 'Arry goes on to tell us that he used to watch Morgan when he was at Forest,” the former Sky Sports presenter wrote on his website while referring to Redknapp’s column in The Telegraph in which he wrote that he watched Leicester City defender Wes Morgan when he was at Nottingham Forest.
“It had me wondering if that was before or after he tried to give them Gareth Bale? Oh no. Silly me, it was just a loan spell so that Bale could get a 'bit of experience'.
“Tottenham fans have Damien Comolli to thank for pulling the plug on the deal. I've talked about this before - he had Jamie ask me and Andy if we had any thoughts about how to get rid of Bale! He thought he was an 'unlucky' player!”
It is quite a stunning revelation, especially as Bale went on to establish himself as a superstar in the Tottenham team.
The 26-year-old’s performances at Spurs were so brilliant that Spanish giants Madrid snapped him up in the summer of 2013.
Bale did not have the best of times when he started his Tottenham career in 2007, but it was great of the club to persevere with him and maintain faith in his ability.
The former Southampton man has scored 15 goals and created 44 chances in 19 La Liga appearances for Madrid so far this season.