But Redknapp has rubbished such reports, insisting he has not heard of him, as well as quashing talk regarding Spurs full-back Chimbonda and West Brom left-back Robinson.
"Luisao - who? Sorry, don't know him," Redknapp told The News. "Chimbonda, no, he's a right-back and I've got the best right-back in England in Glen Johnson. I don't need another.
"I don't need Paul Robinson either, no. He's a good little player, but no."