Where are you getting half a season missing from? I mean seriously, comparing him to Ledley? King was crocked on his first game with us by Delap, who effectively destroyed his knee. Unless you have some intel that Romero has a similar issue, then don't you think you're being just a tad over the top? I mean, why aren't you saying the same thing for Richarlison who cost more, or Kulusevski who will cost a similar amount? Christ, should we just not buy any player with an injury record?
To my knowledge, Romero's injuries are incidental knocks or strains, which is par for the course in his position, hardly worthy of the angst you are projecting here.
FWIW as well, what we are going to pay for Romero is relative peanuts compared to the prices being bandied about for other "prospects."