The former Manchester United defender has been hugely impressed by Rudiger's performances since Thomas Tuchel took charge at the start of this year.
The German centre-back faced an uncertain future at the club when Frank Lampard was manager and Ferdinand admitted his confidence would have 'taken a beating'.
Antonio Rudiger is in fine form and scored in Chelsea's win over Tottenham at the weekend
Rio Ferdinand believes Rudiger has outperformed the likes of Ruben Dias (left) and Virgil van Dijk (right) since Thomas Tuchel took charge of Chelsea
But Rudiger has bounced back and become an influential figure for Chelsea over the last nine months and scored in their 3-0 rout of London rivals Tottenham at the weekend.
Ferdinand was effusive in his praise for the Chelsea man after that victory and said on his YouTube channel: 'Since Tuchel has come I think he's arguably been the best centre-back. I think him and Dias would