On Wednesday, the New York Mets came together as a team to commemorate the victims of 9/11 and the families affected. The idea to buy and wear custom cleats for the game was initiated and carried out by rookie first baseman Pete Alonso. However, the Mets didn’t receive permission from the MLB to wear the custom cleats.
The MLB could’ve disciplined and fined the Mets for carrying out such an act, but has decided not to, per Andy Martino of SNY.
Source: MLB will not be fining or disciplining Pete Alonso and/or the Mets in any way for the custom cleats commemorating 9/11, which they wore without permission.