If Sanchez didn't make mistake, Chelsea should've won this match. Hojlund wasn't in a good position to shot, even if he shot, there was James can block it, but Sanchez forced himself without thinking about the consequence.
Yes, Sanchez was Chelsea's weakest link in this match. With his mistake that caused an unnecessary penalty, the Spanish goalkeeper ruined the defensive effort. This is not the first time Sanchez has committed a foul in the box this season. If he does not improve his form, his place in the Chelsea squad will be in danger.
Sanchez could have handled it more wisely to avoid the collision with Hojlund. A smart goalkeeper wouldn't have put his hands near the opponent. It was just a slight contact, but he should have been calmer, and let Hojlund fall on his own. This was a hasty move by goalkeeper Robert Sanchez.
Coach Enzo Maresca has used Robert Sanchez as Chelsea's numben-one goalkeeper since taking charge. In nine Premier League starts this season, Sanchez has conceded 11 goals and kept just two clean sheets. Robert Sanchez must improve if he does not want to be left out of the starting lineup.