Black's praise of Redknapp comes after the former Tottenham Hotspur boss was linked with the vacant managerial post at Ewood Park, and Black believes that it would be a "sensational appointment" for Blackburn if Redknapp were to join the club.
"Harry is a top manager, right up there in the top echelons. It would be a sensational appointment for Blackburn Rovers," he said.
"Harry has proved it over the years and he's worked at the highest level – what he sees as a challenge or deems to be a positive is up to him.
"But he's certainly an exceptional manager. He's top, top quality candidate."
Blackburn are currently in fifth place in the Championship table.