Walker and Ake flanking Larporte will be the fastest CB trio in the league :)£41m seems like a lot of money for a back up, unless there is no intention of him being a back up. We're getting a good deal Torres, so I suppose that balances it out.
We could be planning on a back 3 with Mendy and Cancelo wing backs. Which means we could need another CB or Rodri/Fern could drop in as a 3rd defender whilst Mendy and Cancelo bomb on.