Enzo Maresca has given Robert Sanchez the chance to prove his quality, but he has failed to live up to the coach's expectations. The decision taken by Enzo Maresca is very reasonable and previously Hansi Flick had done the same thing to Inaki Pena, now he is more trusting the main goalkeeper position to Szczesny.
Chelsea certainly won't be short of players if Robert Sanchez chooses to leave the club, there are still plenty of other goalkeepers who can be relied on to strengthen the team.
Yes, Robert Sanchez's current performance is not in accordance with Enzo Maresca's expectations, because until now Robert Sanchez has only been able to produce 5 clean sheets from 23 matches he has played with Chelsea. In addition, Robert Sanchez has also conceded 28 goals so far and in my opinion this can be said to be not good. That's why if Sanchez wants to leave Chelsea, I also feel that it will not be a big problem. Because Chelsea still has 3 goalkeepers who certainly have the potential to show better performance than Robert Sanchez.
The three goalkeepers are Filip Jorgensen, Marcus Bettineli, and Lucas. In my opinion, of these three goalkeepers, the one who is suitable to replace Robert Sanchez is Filip. Because he is still young and certainly has the potential for his skills to continue to be developed. So with this, Enzo Maresca doesn't need to worry if Robert Sanchez leaves Chelsea, because of course there are still good enough replacements. Or if Chelsea wanted to buy a new goalkeeper, I don't think it would be a problem, because currently Chelsea has a financial situation that certainly allows them to buy a goalkeeper of much higher quality.