As I said. Neither have Messi or Zidane. So by your logic, both are unproven.He’s unproven in the premier league having never played there. Sorry, that’s just factually correct. There would be less risk buying an equivalent player who has played in the premier league. You can give me a list as long as your arm but it doesn’t change the facts.
It may be factually correct to say he's not played in the PL, but that doesn't mean he's unproven. Suggesting otherwise is facile.