Chelsea's spending spree has seen them bring a string of expensive superstars to Stamford Bridge, but their smartest signing might turn out to be a £25m goalkeeper who was out of favour at his previous club.
When Robert Sanchez arrived from Brighton in August, it wasn't immediately obvious to me why Chelsea would want him, or even whether he would play.
I thought Sanchez was a decent keeper, sure, but his statistics certainly didn't suggest he would be an upgrade on Kepa Arrizabalaga and he seemed an unlikely choice as a number one for a club chasing a return to the Champions League places by rebuilding on a big budget.